[#328] get specific object version

[SonnyBA]

Fixes #328

Changes

Allows retrieving objects by their uuid and index

[annashamray]

Same question as Steven's. Otherwise looks good

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 92.30769% with 2 lines in your changes missing coverage. Please review.

Project coverage is 95.19%. Comparing base (e97300f) to head (528a7d5).
Report is 129 commits behind head on master.

Files with missing lines	Patch %	Lines
src/objects/api/v2/views.py	80.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #429      +/-   ##
==========================================
+ Coverage   94.84%   95.19%   +0.35%     
==========================================
  Files         135      152      +17     
  Lines        4657     5352     +695     
==========================================
+ Hits         4417     5095     +678     
- Misses        240      257      +17     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.