Add workflow config and codeowners definition file #54

Job	Run time
semver	3s
Build and test (ubuntu-latest, Debug)	44s
Build and test (windows-latest, Release)	1m 54s
Build and test (windows-latest, Debug)	1m 48s
Build and test (ubuntu-latest, Release)	47s
Repackage with plugins (Release, net8.0)	18s
Repackage with plugins (Release, netstandard2.0)	16s
Update badges	11s
Repackage with plugins (Release, net6.0)	13s
	6m 14s

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