Check sematically equivalent modules

[bskqd]

added notifying vendors about semantically different modules in vendor dirs, which should be merged only after YangCatalog/deployment#197 and mbj4668/pyang#857

resolves #748

[codecov]

Codecov Report

Merging #782 (8ec5950) into develop (428063c) will increase coverage by 0.12%.
The diff coverage is 83.69%.

❗ Current head 8ec5950 differs from pull request most recent head 6d9428e. Consider uploading reports for the commit 6d9428e to get more accurate results

@@             Coverage Diff             @@
##           develop     #782      +/-   ##
===========================================
+ Coverage    77.74%   77.86%   +0.12%     
===========================================
  Files          110      110              
  Lines        11393    11649     +256     
===========================================
+ Hits          8857     9071     +214     
- Misses        2536     2578      +42     

Impacted Files	Coverage Δ
parseAndPopulate/populate.py	81.11% <ø> (ø)
utility/util.py	69.03% <14.70%> (-11.46%)	⬇️
parseAndPopulate/groupings.py	71.96% <78.00%> (+2.77%)	⬆️
parseAndPopulate/file_hasher.py	78.41% <93.33%> (+4.96%)	⬆️
parseAndPopulate/modules.py	85.00% <100.00%> (+0.51%)	⬆️
parseAndPopulate/parse_directory.py	98.94% <100.00%> (ø)
tests/test_groupings.py	98.34% <100.00%> (+0.90%)	⬆️
tests/test_parse_directory.py	94.65% <100.00%> (ø)
utility/staticVariables.py	100.00% <100.00%> (ø)