[18.0] [ADD] shopinvader_router_helper

[paradoxxxzero]

This first 18.0 PR introduce a new way to handle router odoo-inheritable code.

It fixes several problems that arises when using directly AbstractModel.new in 18.0 by introducing a new VirtualModel.

It also provides an helper with common CRUD methods with a new security approach and includes and replaces shopinvader_filtered_model.

This helper is aimed to be used in all shopinvader modules that does CRUD on odoo models.

Depends on OCA/rest-framework#587

[codecov]

Codecov Report

❌ Patch coverage is 95.05814% with 17 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (18.0@34d1480). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
shopinvader_router_helper/helper.py	82.75%	15 Missing ⚠️
shopinvader_router_helper/tests/common.py	90.90%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             18.0    #1616   +/-   ##
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  Coverage        ?   95.05%           
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  Files           ?        7           
  Lines           ?      344           
  Branches        ?       11           
=======================================
  Hits            ?      327           
  Misses          ?       15           
  Partials        ?        2           

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