Moved generate_json_map to new module

[adedamola-sode]

Moved generate_json_map to new module called generate_jsonmap.

1. generate-jsonmap can now be called on the command line
2. It can also be called with an argument when using techui-builder "--generate-jsonmap or -j "

[codecov]

Codecov Report

❌ Patch coverage is 96.72897% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 96.05%. Comparing base (2aed9a5) to head (ab676b5).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/techui_builder/generate_jsonmap.py	96.63%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #226      +/-   ##
==========================================
+ Coverage   95.91%   96.05%   +0.13%     
==========================================
  Files          11       12       +1     
  Lines         906      938      +32     
==========================================
+ Hits          869      901      +32     
  Misses         37       37              

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