Solve issue 1865, add is_trail & is_acyclic path functions

[andyfengHKU]

#1865

[codecov]

Codecov Report

Patch coverage: 83.56% and project coverage change: -0.03% ⚠️

Comparison is base (2955977) 91.13% compared to head (a5fcea8) 91.11%.

❗ Current head a5fcea8 differs from pull request most recent head 2f8bf24. Consider uploading reports for the commit 2f8bf24 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1868      +/-   ##
==========================================
- Coverage   91.13%   91.11%   -0.03%     
==========================================
  Files         805      806       +1     
  Lines       29131    29204      +73     
==========================================
+ Hits        26549    26608      +59     
- Misses       2582     2596      +14     

Files Changed	Coverage Δ
src/common/vector/value_vector.cpp	100.00% <ø> (ø)
src/include/function/hash/hash_functions.h	60.86% <ø> (ø)
src/include/function/path/vector_path_functions.h	100.00% <ø> (ø)
...ude/processor/operator/recursive_extend/frontier.h	100.00% <ø> (ø)
src/include/function/path/path_function_executor.h	77.77% <77.77%> (ø)
src/function/vector_path_functions.cpp	82.75% <91.66%> (+3.39%)	⬆️
src/expression_evaluator/node_rel_evaluator.cpp	100.00% <100.00%> (ø)
src/expression_evaluator/path_evaluator.cpp	98.51% <100.00%> (+0.02%)	⬆️
src/function/built_in_vector_functions.cpp	99.40% <100.00%> (+<0.01%)	⬆️

... and 3 files with indirect coverage changes

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