Implement global setting for run on save #336

Job	Run time
Run Tests	1m 10s
Check TODOs	5s
Check Formatting	14s
Test CSharpier.MSBuild (ubuntu-latest)	1m 41s
Test CSharpier.MSBuild (windows-latest)	1m 37s
Builds Playground	1m 1s
No Warnings	1m 1s
	6m 49s

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