Add StateObject implementation

[Kyle-Ye]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 42 lines in your changes missing coverage. Please review.
✅ Project coverage is 15.66%. Comparing base (ff01ac1) to head (4c013d6).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...ces/OpenSwiftUICore/Data/Combine/StateObject.swift	0.00%	40 Missing ⚠️
.../OpenSwiftUICore/Data/Combine/ObservedObject.swift	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #525      +/-   ##
==========================================
- Coverage   15.67%   15.66%   -0.02%     
==========================================
  Files         478      478              
  Lines       26463    26491      +28     
==========================================
+ Hits         4149     4150       +1     
- Misses      22314    22341      +27     

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