Type macrostrat.map_scale does not exist

[davenquinn]

After finishing #60 and merging the new version of the macrostrat schema, we are encountering tileserver errors with the non-existence of a special type macrostrat.map_scale.

  File "asyncpg/protocol/protocol.pyx", line 207, in bind_execute
asyncpg.exceptions.UndefinedObjectError: type "macrostrat.map_scale" does not exist

This is preventing the paleogeography system from working.

It appears that this type was not included in porting the Macrostrat system over from MariaDB, or noticed as an omission. This makes sense as the map_scale is really a better fit to be included in the maps system.

On closer inspection, it seems that types for other layers have been changed to macrostrat_backup.map_scale. This layer will obviously be removed at some point in the future.

The solution is likely to create a migration that ties the map_scale enum more specifically to the maps system.