feat: Addedd ReadOnlySpan, Refactor to class, improve XML docs #767

Job	Run time
all / Version Management / Detect Version	22s
all / Commit Linter / Commitlint	16s
all / Code Formatting / Validate Code Formatting	33s
all / Run Tests / Testing .NET solution	8m 10s
all / Build Solution / Build .NET solution	2m 26s
	11m 47s

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