[GIE/Engine]: add direct executor implementation;

[bmmcq]

as title;

[codecov-commenter]

Codecov Report

Merging #2234 (6a12341) into main (f524550) will decrease coverage by 31.73%.
The diff coverage is n/a.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #2234       +/-   ##
===========================================
- Coverage   71.93%   40.19%   -31.74%     
===========================================
  Files          89       87        -2     
  Lines        9884     9847       -37     
===========================================
- Hits         7110     3958     -3152     
- Misses       2774     5889     +3115     

Impacted Files	Coverage Δ
...ython/graphscope/tests/unittest/test_cython_ast.py	0.00% <0.00%> (-100.00%)	⬇️
...ython/graphscope/tests/unittest/test_serailaize.py	0.00% <0.00%> (-100.00%)	⬇️
python/graphscope/analytical/udf/patch.py	3.47% <0.00%> (-96.53%)	⬇️
python/graphscope/tests/unittest/test_lazy.py	0.00% <0.00%> (-96.19%)	⬇️
python/graphscope/tests/unittest/test_app.py	0.00% <0.00%> (-96.11%)	⬇️
...thon/graphscope/tests/unittest/test_scalability.py	0.00% <0.00%> (-96.00%)	⬇️
...hon/graphscope/tests/unittest/test_create_graph.py	0.00% <0.00%> (-92.73%)	⬇️
python/graphscope/tests/unittest/test_graph.py	0.00% <0.00%> (-85.47%)	⬇️
python/graphscope/tests/unittest/test_context.py	0.00% <0.00%> (-81.04%)	⬇️
python/graphscope/analytical/udf/wrapper.py	27.27% <0.00%> (-72.73%)	⬇️
... and 39 more

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