Fixed list being top node in yang model

[ghost]

• removed duplicate sanity yang file

[codecov]

Codecov Report

Merging #728 into master will increase coverage by <.01%.
The diff coverage is 81.25%.

@@            Coverage Diff             @@
##           master     #728      +/-   ##
==========================================
+ Coverage   80.45%   80.46%   +<.01%     
==========================================
  Files         170      170              
  Lines       16288    16300      +12     
  Branches     1473     1473              
==========================================
+ Hits        13104    13115      +11     
- Misses       2824     2825       +1     
  Partials      360      360

Impacted Files	Coverage Δ
sdk/cpp/core/src/path/root_data_node.cpp	76.08% <ø> (+0.55%)	⬆️
sdk/cpp/core/src/entity_data_node_walker.cpp	85.14% <0%> (ø)	⬆️
sdk/python/core/tests/test_sanity_levels.py	98.3% <100%> (ø)	⬆️
sdk/cpp/core/src/crud_service.cpp	89.77% <84.61%> (-1.02%)	⬇️

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