Add raytune examples / tests

[raubitsj]

Description

Add examples / tests for ray/tune

Also:

• Updated coveragetool to detect .coveragerc issues (found one, imports was there and didnt need to be)
• Updated .coveragerc to be sorted, because sorted is better

Requires:

• Pin flask.. new release is causing dependency issues and flake for imports5 yea-wandb#90

Possible future work:

• add more asserts to some of the tests, a little tedious, but should be done
• debug or document that ray1.12 not supported with wandb 1.13.0+ or workaround is needed (disable service)? (see t5_ test in ray)

Testing

These are tests.

[codecov]

Codecov Report

Merging #4053 (fae2795) into master (e36228d) will increase coverage by 0.01%.
The diff coverage is n/a.

❗ Current head fae2795 differs from pull request most recent head 162a528. Consider uploading reports for the commit 162a528 to get more accurate results

@@            Coverage Diff             @@
##           master    #4053      +/-   ##
==========================================
+ Coverage   82.73%   82.75%   +0.01%     
==========================================
  Files         255      255              
  Lines       32264    32263       -1     
==========================================
+ Hits        26694    26699       +5     
+ Misses       5570     5564       -6     

Flag	Coverage Δ
functest	55.20% <ø> (+0.29%)	⬆️
unittest	73.45% <ø> (-0.02%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
wandb/sdk/service/server_sock.py	91.87% <0.00%> (-1.02%)	⬇️
wandb/sdk/wandb_run.py	90.95% <0.00%> (-0.25%)	⬇️
wandb/sdk/wandb_settings.py	94.83% <0.00%> (+0.13%)	⬆️
wandb/sdk/service/streams.py	93.85% <0.00%> (+0.43%)	⬆️
wandb/sdk/internal/stats.py	66.83% <0.00%> (+0.51%)	⬆️
wandb/sdk/lib/git.py	79.01% <0.00%> (+0.61%)	⬆️
wandb/sdk/lib/sock_client.py	91.36% <0.00%> (+1.43%)	⬆️
wandb/sdk/internal/meta.py	90.79% <0.00%> (+3.68%)	⬆️

[dmitryduev]

LGTM!