Use doubles instead of integers in the attribute base classes

[helto4real]

Breaking change

This is technically a breaking change but this feature is still in beta so it should be ok.

Proposed change

Change types of attribute baseclasses from int to double for more roboust serialization. The code generator also use doubles so this makes sense.

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

[codecov]

Codecov Report

Base: 80.98% // Head: 81.10% // Increases project coverage by +0.12% 🎉

Coverage data is based on head (5edb470) compared to base (f58c0c7).
Patch coverage: 0.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev     #843      +/-   ##
==========================================
+ Coverage   80.98%   81.10%   +0.12%     
==========================================
  Files         159      159              
  Lines        4107     4107              
  Branches      406      406              
==========================================
+ Hits         3326     3331       +5     
+ Misses        620      616       -4     
+ Partials      161      160       -1     

Flag	Coverage Δ
unittests	81.10% <0.00%> (+0.12%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...mon.HassModel/Entities/Core/LightAttributesBase.cs	0.00% <0.00%> (ø)
...ssModel/Entities/Core/MediaPlayerAttributesBase.cs	0.00% <0.00%> (ø)
...mon.HassClient/Internal/HomeAssistantConnection.cs	88.79% <0.00%> (+1.72%)	⬆️
...mon.HassClient/Internal/Net/WebSocketClientImpl.cs	69.44% <0.00%> (+8.33%)	⬆️

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[phillipsawyer]

👍