Fix checking ownership by user perms not group.

[jkmarx]

Ref #2875

• Fixes the issue in the file browser
• Prevents non-owners from deleting a data set
• For ownership, check add_ perms and don't use group_perms
• Also resolved Revise Metadata button in "Details" tab still clickable when disabled #2884

*Note, issues with cached data sets in the launch pad (uses api v1).

[codecov]

Codecov Report

Merging #2886 into release-1.6.5 will decrease coverage by 0.15%.
The diff coverage is 55.55%.

@@                Coverage Diff                @@
##           release-1.6.5    #2886      +/-   ##
=================================================
- Coverage          59.16%   59.01%   -0.16%     
=================================================
  Files                434      434              
  Lines              27722    27121     -601     
  Branches            1268     1268              
=================================================
- Hits               16403    16006     -397     
+ Misses             11319    11115     -204

Impacted Files	Coverage Δ
refinery/core/api.py	40.65% <0%> (-2.63%)	⬇️
refinery/core/views.py	40.48% <58.82%> (+0.13%)	⬆️
refinery/tool_manager/models.py	97.01% <0%> (-0.21%)	⬇️
refinery/tool_manager/tests.py	99.82% <0%> (-0.01%)	⬇️

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