Add spacing support for HVStack

[Kyle-Ye]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 2.06186% with 95 lines in your changes missing coverage. Please review.

Project coverage is 19.78%. Comparing base (6ba28f2) to head (d4e7bd0).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...ces/OpenSwiftUICore/Layout/Stack/StackLayout.swift	0.00%	89 Missing ⚠️
...ces/OpenSwiftUICore/Layout/Edge/AbsoluteEdge.swift	25.00%	6 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #368      +/-   ##
==========================================
- Coverage   19.82%   19.78%   -0.04%     
==========================================
  Files         407      407              
  Lines       21547    21577      +30     
==========================================
- Hits         4272     4270       -2     
- Misses      17275    17307      +32     

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