Add McpMetaAttribute for attaching metadata to tools, prompts, and resources #963

Job	Run time
build (macos-latest, Debug)	7m 29s
build (ubuntu-latest, Debug)	5m 19s
build (macos-latest, Release)	4m 12s
build (windows-latest, Release)	9m 25s
build (ubuntu-latest, Release)	5m 43s
build (windows-latest, Debug)	10m 6s
publish-coverage	0s
build (windows-latest, Release)	7m 34s
build (macos-latest, Release)	4m 12s
build (windows-latest, Debug)	10m 6s
build (macos-latest, Debug)	7m 29s
build (ubuntu-latest, Release)	5m 43s
build (ubuntu-latest, Debug)	5m 19s
publish-coverage	-1s
	1h 22m 36s

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