[DOP-10395] - add detect_hwm_store decorator

[maxim-lixakov]

Change Summary

• add decorator: detect_hwm_store in etl_entities.hwm_store (source code was imported from onetl.hwm.store)
• add tests
• update documentation

Related issue number

Checklist

• Commit message and PR title is comprehensive
• Keep the change as small as possible
• Unit and integration tests for the changes exist
• Tests pass on CI and coverage does not decrease
• Documentation reflects the changes where applicable
• docs/changelog/next_release/<pull request or issue id>.<change type>.rst file added describing change
  (see CONTRIBUTING.rst for details.)
• My PR is ready to review.

[codecov]

Codecov Report

Merging #33 (23afec3) into develop (24cdfcf) will increase coverage by 0.60%.
The diff coverage is 98.41%.

@@             Coverage Diff             @@
##           develop      #33      +/-   ##
===========================================
+ Coverage    94.78%   95.38%   +0.60%     
===========================================
  Files           47       48       +1     
  Lines          978     1041      +63     
  Branches       158      173      +15     
===========================================
+ Hits           927      993      +66     
+ Misses          30       27       -3     
  Partials        21       21              

Files	Coverage Δ
etl_entities/entity.py	96.55% <100.00%> (+0.12%)	⬆️
etl_entities/hwm_store/__init__.py	100.00% <100.00%> (ø)
etl_entities/hwm_store/hwm_store_detect.py	98.36% <98.36%> (ø)

... and 1 file with indirect coverage changes

[dolfinus]

Поменяй в codecov.yml процент покрытия на 94. А то проверка будет постоянно падать