[Functionality] Reduce Custom generator scope to a Single stage generator

[coder137]

Reduces the scope of Custom Generator functionality to remain a Single-Stage generator.

Earlier implementation of Custom Generator was very complex and allowed it to be a Multi-Stage generator.

[codecov]

Codecov Report

Base: 99.31% // Head: 99.15% // Decreases project coverage by -0.16% ⚠️

Coverage data is based on head (03061bd) compared to base (57a26a5).
Patch coverage: 98.84% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #227      +/-   ##
==========================================
- Coverage   99.31%   99.15%   -0.16%     
==========================================
  Files          73       75       +2     
  Lines        2039     2004      -35     
  Branches      573      564       -9     
==========================================
- Hits         2025     1987      -38     
- Partials       14       17       +3     

Impacted Files	Coverage Δ
buildcc/lib/target/include/target/file_generator.h	100.00% <ø> (ø)
...dcc/lib/target/include/target/template_generator.h	100.00% <ø> (ø)
...cc/schema/include/schema/custom_generator_schema.h	100.00% <ø> (ø)
...ildcc/lib/target/include/target/custom_generator.h	98.28% <97.67%> (-1.72%)	⬇️
...lude/target/custom_generator/custom_blob_handler.h	100.00% <100.00%> (ø)
...target/custom_generator/custom_generator_context.h	100.00% <100.00%> (ø)
...b/target/src/custom_generator/custom_generator.cpp	98.94% <100.00%> (-0.43%)	⬇️
...ldcc/schema/src/custom_generator_serialization.cpp	94.44% <0.00%> (-5.56%)	⬇️
buildcc/schema/src/target_serialization.cpp	96.97% <0.00%> (-3.03%)	⬇️
buildcc/lib/target/src/target/build.cpp	91.43% <0.00%> (-0.68%)	⬇️
... and 11 more

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

☔ View full report at Codecov.
📢 Do you have feedback about the report comment? Let us know in this issue.