feat(API,CLI) add support for searches with complex filters

[Barbozafab]

Description

• Created a new option for ls and get to perform searches with complex filters;

• Created new API endpoint /api/objects/search;

• Updated the CLI autocompleter with cp, connect3d and disconnect3d commands;

• Updated the layers:

  • Layers used to have an attribute filters, which was a map[string]string filled with multiple simple filters; when the layer was applied, an AND operation was done between all the simple filters.
  • Now, this attribute has been changed to filter, a single string containing a complex filter;
  • The complex filter can be reassigned by doing [slug]:filter=[new complex filter];
  • A new filter can be added to the current one, resulting in an AND operation between the old filter and the new one, by doing [slug]:filter+=[new complex filter].

• Fixes Logical operators in layers filters #278

Type of change

• New feature (non-breaking change which adds functionality)

How Has This Been Tested?

• Local test

[helderbetiol]

If someone forgets to put the path in the ls command, maybe we should give a better error:

/Physical> ls -f reservedColor=AAAAAA
Error: on GET /api/hierarchy-objects/reservedColor=AAAAAA/all?limit=1 : cannot unmarshal json : 
404 page not found

[helderbetiol]

The classic (simple) filter could use wildcards (*) as bellow while the complex one cannot:

admin@TenantName:/Physical> ls . name=site*
k, v name site*
siteA
siteB
siteD
admin@TenantName:/Physical> ls . -f name=site*
k, v filter name=site*
Error: Invalid filter expression

[Barbozafab]

I've updated the parser so now it demands a path to be specified when performing an ls or `get with a complex filter, and I've also added support for wildcards on complex filters.

[helderbetiol]

I think I've seen this code before, maybe we can create a function for it?