feat: enable selective generation based on service config include list #8906

Job	Run time
build(8) for gapic-generator-java	11m 47s
build (11)	15m 6s
build (17)	15m 18s
build(8) except for gapic-generator-java	4m 27s
dependency_analyzer_unit_test	23s
compatibility	1m 28s
gapic-generator-java-bom	1m 49s
lint	25s
showcase (11)	4m 7s
showcase-native	8m 8s
showcase (17)	4m 0s
showcase-clirr	3m 7s
showcase (21)	3m 45s
unmanaged_dependency_check	4m 32s
build(21) except self-service clients	13m 42s
	1h 32m 4s

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