[16.0][ADD] web_theme_color: add new module

[WesleyOliveira98]

@Escodoo HT02096

Supersedes: #7

cc: @marcelsavegnago @CristianoMafraJunior @kaynnan

[codecov]

Codecov Report

❌ Patch coverage is 75.47170% with 13 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (16.0@25d3768). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
web_theme_color/models/ir_config_parameter.py	61.90%	7 Missing and 1 partial ⚠️
web_theme_color/models/web_theme_color.py	82.75%	3 Missing and 2 partials ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             16.0       #8   +/-   ##
=======================================
  Coverage        ?   75.47%           
=======================================
  Files           ?        4           
  Lines           ?       53           
  Branches        ?        4           
=======================================
  Hits            ?       40           
  Misses          ?       10           
  Partials        ?        3           

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