Add Google GenAI plugin samples #1281

Job	Run time
build-lint-test (3.14, macos-intel)	2m 3s
build-lint-test (3.10, macos-intel)	1m 59s
build-lint-test (3.14, ubuntu-latest)	1m 41s
build-lint-test (3.10, windows-latest)	1m 42s
build-lint-test (3.10, ubuntu-latest)	1m 35s
build-lint-test (3.14, windows-latest)	1m 43s
build-lint-test (3.14, macos-arm)	1m 29s
build-lint-test (3.10, macos-arm)	1m 52s
	14m 4s

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