.NET Core Test and Publish

NeoToken: add NEP-27 to supported standards list starting from Echidna #10843

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Run time

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Job	Run time
Format	1m 20s
Test-Everything	1m 4s
Test (ubuntu-latest)	3m 58s
Test (windows-latest)	3m 27s
Test (macos-latest)	1m 40s
PublishPackage	0s
	11m 29s