Adding the xml whitespace options #322

Job	Run time
Check TODOs	8s
Check Formatting	13s
No Warnings	53s
Builds Playground	1m 1s
Test CSharpier.MSBuild (ubuntu-latest)	1m 37s
Run Tests	1m 12s
Test CSharpier.MSBuild (windows-latest)	1m 40s
	6m 44s

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