* GET /instance/monitor
* GET /instance/config

Use x-go-type openapi syntax to avoid a lot of transtyping code.

* Rename api.GetInstance*Element to api.Instance*Item

* Use api.InstanceStatusItem in the PostInstanceStatus handler,
  so the POST and GET /instance/status use the same body format

* Make PostInstanceStatus verify the emitter node is the
  localhost

Example:

$ curl -X GET 'https://localhost:1215/instance?path=foo001'   -H 'accept: application/json'   -H 'Authorization: Basic ..'  -k -s |jq
[
  {
    "data": {
      "config": {
        "app": "default",
        "csum": "80e572a36f85f34823211913bce56059",
        "children": [
          "foo010",
          "foo011",
          "foo012",
          "foo013",
          "foo014@dev2n1",
          "notexist"
        ],
        "orchestrate": "ha",
        "placement_policy": "last start",
        "priority": 50,
        "resources": {
          "fs#1": {
            "is_disabled": false,
            "is_monitored": false,
            "is_standby": false,
            "restart": 0,
            "restart_delay": 500000000
          },
          "volume#1": {
            "is_disabled": false,
            "is_monitored": false,
            "is_standby": false,
            "restart": 0,
            "restart_delay": 500000000
          },
          "volume#2": {
            "is_disabled": false,
            "is_monitored": false,
            "is_standby": false,
            "restart": 0,
            "restart_delay": 500000000
          },
          "volume#3": {
            "is_disabled": false,
            "is_monitored": false,
            "is_standby": false,
            "restart": 0,
            "restart_delay": 500000000
          }
        },
        "scope": [
          "dev2n1",
          "dev2n2",
          "dev2n3"
        ],
        "subsets": {},
        "topology": "failover",
        "updated_at": "2023-08-23T08:20:50.605710559+02:00"
      },
      "monitor": {
        "global_expect": "none",
        "global_expect_updated_at": "0001-01-01T00:00:00Z",
        "global_expect_options": null,
        "is_leader": false,
        "is_ha_leader": false,
        "local_expect": "started",
        "local_expect_updated_at": "2023-09-02T10:55:54.246600548+02:00",
        "orchestration_id": "00000000-0000-0000-0000-000000000000",
        "orchestration_is_done": false,
        "session_id": "00000000-0000-0000-0000-000000000000",
        "state": "idle",
        "state_updated_at": "2023-09-02T10:55:51.397889345+02:00",
        "monitor_action_executed_at": "0001-01-01T00:00:00Z",
        "preserved": false,
        "resources": {
          "fs#1": {
            "restart": {
              "remaining": 0,
              "last_at": "0001-01-01T00:00:00Z"
            }
          },
          "volume#1": {
            "restart": {
              "remaining": 0,
              "last_at": "0001-01-01T00:00:00Z"
            }
          },
          "volume#2": {
            "restart": {
              "remaining": 0,
              "last_at": "0001-01-01T00:00:00Z"
            }
          },
          "volume#3": {
            "restart": {
              "remaining": 0,
              "last_at": "0001-01-01T00:00:00Z"
            }
          }
        },
        "updated_at": "2023-09-02T10:55:54.246628287+02:00",
        "children": {
          "foo010": "up",
          "foo011": "up",
          "foo012": "undef",
          "foo013": "up",
          "foo014@dev2n1": "up",
          "notexist": "undef"
        }
      },
      "status": {
        "avail": "up",
        "frozen_at": "0001-01-01T00:00:00Z",
        "last_started_at": "2023-08-25T19:35:47.633870082+02:00",
        "overall": "up",
        "provisioned": "true",
        "resources": [
          {
            "rid": "volume#1",
            "label": "foo001-vol-1",
            "status": "up",
            "type": "volume",
            "provisioned": {
              "mtime": "2023-07-06T10:03:25.231284828+02:00",
              "state": "true"
            }
          },
          {
            "rid": "volume#2",
            "label": "foo001-vol-2",
            "status": "up",
            "type": "volume",
            "provisioned": {
              "mtime": "2023-07-06T10:03:30.127315837+02:00",
              "state": "true"
            }
          },
          {
            "rid": "volume#3",
            "label": "foo001-vol-3",
            "status": "up",
            "type": "volume",
            "provisioned": {
              "mtime": "2023-07-06T10:03:35.211348039+02:00",
              "state": "true"
            }
          },
          {
            "rid": "fs#1",
            "label": "flag /dev/shm/opensvc/svc/foo001/fs#1.flag",
            "status": "up",
            "type": "fs.flag",
            "provisioned": {
              "mtime": "2023-07-06T10:03:35.543350141+02:00",
              "state": "true"
            }
          }
        ],
        "updated_at": "2023-09-02T10:55:51.574173407+02:00"
      }
    },
    "meta": {
      "node": "dev2n1",
      "object": "foo001"
    }
  },
...

Use POST /objet/action/<action> instead, in the objectaction
package.

And drop the POST /object/abort handler.

GET /node
GET /node/config
GET /node/status
GET /node/monitor

These handlers return list of meta+data items, suited for
filtered by meta tabular outputs.

* POST /cluster/action/abort
* POST /cluster/action/freeze
* POST /cluster/action/unfreeze

As "cluster freeze" and "cluster unfreeze" are the command to
submit an orchestration, the orchestration abort must be in the
same command subsystem.

Set LocalExpect instead of State to "drained".

Example:

root@dev2n1:~/dev/om3# ./om3 "test/**" instance ls
OBJ           NODE   AVAIL
test/svc/svc1 dev2n1 n/a
test/cfg/cfg1 dev2n1 n/a
test/cfg/cfg1 dev2n3 n/a
test/cfg/cfg1 dev2n2 n/a

Also add support for adding columns to a default columning.

Example:

root@dev2n1:~/dev/om3# ./om3 "test/**" instance ls -o "+OVERALL:.data.status.overall"
OBJ           NODE   AVAIL OVERALL
test/cfg/cfg1 dev2n2 n/a   n/a
test/cfg/cfg1 dev2n1 n/a   n/a
test/svc/svc1 dev2n1 n/a   n/a
test/cfg/cfg1 dev2n3 n/a   n/a

This patch also rename the output.Renderer.Format field to
output.Renderer.Output for alignment with the commandline --output.

Instead of a map.

* instance config ls
* instance monitor ls
* instance status ls

In addition to instance ls that reports all of the above info.

So the rid is not embeded in rcfg, rstat and rmon

So the Status word is free to be used as a type.

* ExposedStatus => Status
* GetExposedStatus => GetStatus
* exposedStatusInfo => getStatusInfo
* exposedStatusInfoSched => getStatusInfoSched

And convert the "ls" command to use that.

Also,
* Fix the yaml properties stripped from their underscore.
* Rename the drbd allocation ExpireAt to ExpiredAt

* GET /resource
* GET /resource/config
* GET /resource/monitor
* GET /resource/status

* resource ls
* resource config ls
* resource monitor ls
* resource status ls

Report the error in the table cell and continue, so the user can
easily see which part of the columning syntax is wrong.