feat(gapic-generator-java): Extract resource name heuristicly #214

Job	Run time
filter	58s
build(8) except for gapic-generator-java	4m 2s
showcase-clirr	5m 34s
build(8) for showcase	9m 21s
build(8) for gapic-generator-java	10m 48s
build(25) except self-service clients	12m 11s
gapic-generator-java-bom	2m 22s
build (17)	12m 28s
unmanaged_dependency_check	9m 33s
build(21) except self-service clients	12m 9s
build (11)	12m 44s
showcase (17)	8m 57s
dependency_analyzer_unit_test	1m 15s
showcase (11)	8m 55s
showcase (21)	8m 56s
showcase (25)	8m 38s
	2h 8m 51s

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