Initiate work on PutObjectTagging ref PR#71 and issue #72

[johannesboyne]

This fixes issue #72 and builds on PR #71

If the general implementation would work like this as expected, we could extend the test cases a bit and then merge this PR.

[sonarqubecloud]

SonarCloud Quality Gate failed.   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
8.1% Duplication

[codecov-commenter]

Codecov Report

Attention: 21 lines in your changes are missing coverage. Please review.

Comparison is base (c55a48f) 65.94% compared to head (940f235) 65.74%.

Files	Patch %	Lines
gofakes3.go	56.25%	7 Missing and 7 partials ⚠️
routing.go	69.23%	4 Missing ⚠️
backend/s3afero/single.go	33.33%	2 Missing ⚠️
backend/s3afero/multi.go	66.66%	1 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##           master      #75      +/-   ##
==========================================
- Coverage   65.94%   65.74%   -0.21%     
==========================================
  Files          28       28              
  Lines        2693     2744      +51     
==========================================
+ Hits         1776     1804      +28     
- Misses        651      666      +15     
- Partials      266      274       +8     

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[johannesboyne]

@elgohr see this implementation as a first step, your test case is running with this but might be good to check out your real-world case against this to see, whether it actually works and behaves as expected.

[sonarqubecloud]

Quality Gate failed

Failed conditions
6.9% Duplication on New Code (required ≤ 3%)

See analysis details on SonarCloud