CMR-10151: Add Collection Search Endpoint

[dmistry1]

Adding support for collection-search:

• Adds collection search extension to conformsTo

• Initially, I considered adding a /collections/search route for searching collections. While this is a valid approach, it's more aligned with STAC browser to implement collection search directly at the /collections level. (see discussion here).

• A user can now search for collection based on spatial and temporal fields.

• In STAC browser there is now a Search for Collections tab
  

• Collection Search though a CURL

  • GET: curl "http://localhost:3000/stac/LPCLOUD/collections?bbox=-180,-90,180,90"
  • POST : curl -X POST "http://localhost:3000/stac/PROVIDER_ID/collections" \ -H "Content-Type: application/json" \ -d `{ "bbox": [-180, -90, 180, 90], "datetime": "2021-01-01T00:00:00Z/2021-12-31T23:59:59Z", "limit": 10}'

[william-valencia]

Is there a test that does the POST request for the collection search?

[william-valencia]

Also looks like there is a snyk vulnerability that needs to be addressed.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.56%. Comparing base (b3b24cf) to head (9b1b24e).
Report is 70 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #349      +/-   ##
==========================================
- Coverage   88.77%   87.56%   -1.22%     
==========================================
  Files          29       23       -6     
  Lines        1515     1094     -421     
  Branches      298      238      -60     
==========================================
- Hits         1345      958     -387     
+ Misses        161      136      -25     
+ Partials        9        0       -9     

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