Add initial implementation for PropertyList

[codecov-commenter]

Codecov Report

Attention: 208 lines in your changes are missing coverage. Please review.

Comparison is base (dd40763) 14.45% compared to head (f4a844d) 13.25%.

Files	Patch %	Lines
...dStorage/Internal/Property/TODO/PropertyList.swift	0.96%	206 Missing :warning:
.../DataAndStorage/Internal/UnsafeLockedPointer.swift	0.00%	2 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #13 +/- ## ========================================== - Coverage 14.45% 13.25% -1.21% ========================================== Files 131 131 Lines 1868 2060 +192 ========================================== + Hits 270 273 +3 - Misses 1598 1787 +189 ```

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