adding @update-catalog endpoint

[nilbacardit26]

This goes in conjunction with this:
plone/guillotina_elasticsearch#105

With ES nowadays, if we want to index new fields using index_field the only way to update the mappings and settings of the index using the API of guillotina is to do a POST to @ catalog, which deletes the whole index, and creates it again. Then we need to reindex all the data calling POST @catalog-reindex. With this change, (regarding ES) when adding new index fields we can just call @update-catalog and delegate the logic (if necessary) to the catalog utility.

[codecov-commenter]

Codecov Report

Merging #1182 (1964657) into master (6ee373b) will decrease coverage by 0.1%.
The diff coverage is 91.7%.

Additional details and impacted files

@@           Coverage Diff            @@
##           master   #1182     +/-   ##
========================================
- Coverage    94.7%   94.7%   -0.0%     
========================================
  Files         358     358             
  Lines       30700   30712     +12     
========================================
+ Hits        29069   29080     +11     
- Misses       1631    1632      +1     

Impacted Files	Coverage Δ
guillotina/api/search.py	90.7% <87.5%> (-0.4%)	⬇️
guillotina/catalog/catalog.py	87.0% <100.0%> (+0.2%)	⬆️
guillotina/interfaces/catalog.py	100.0% <100.0%> (ø)
guillotina/tests/test_catalog.py	100.0% <100.0%> (ø)