Alfa version of Registry object, work in progress

[FrankBakkerNl]

Breaking change

Proposed change

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New feature (which adds functionality to an existing integration)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the [development checklist][dev-checklist]
• The code compiles without warnings (code quality chek)
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

[helto4real]

Awesome job with this PR. Just a few comments.

[codecov]

Codecov Report

Attention: Patch coverage is 84.76190% with 32 lines in your changes are missing coverage. Please review.

Project coverage is 77%. Comparing base (6bc62b3) to head (45b0c11).

Files	Patch %	Lines
...odel/NetDeamon.HassModel/Internal/RegistryCache.cs	79%	8 Missing and 9 partials ⚠️
...l/NetDeamon.HassModel/Internal/HassObjectMapper.cs	83%	0 Missing and 6 partials ⚠️
src/HassModel/NetDeamon.HassModel/HaRegistry.cs	68%	0 Missing and 5 partials ⚠️
...n.HassModel/Internal/AppScopedHaContextProvider.cs	83%	2 Missing ⚠️
....HassClient/Common/HomeAssistant/Model/HassArea.cs	75%	1 Missing ⚠️
...c/HassModel/NetDeamon.HassModel/Entities/Entity.cs	80%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@          Coverage Diff          @@
##           main   #1077    +/-   ##
=====================================
  Coverage    76%     77%            
=====================================
  Files       181     186     +5     
  Lines      5031    5157   +126     
  Branches    668     660     -8     
=====================================
+ Hits       3870    3982   +112     
  Misses     1027    1027            
- Partials    134     148    +14     

Flag	Coverage Δ
unittests	77% <84%> (+<1%)	⬆️

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[helto4real]

Nice work !!