RATIS-2237 Add getFollowerMatchIndices interface for DivisionInfo #3747

Job	Run time
CI / build / build	1m 10s
CI / basic (author) / author	6s
CI / basic (checkstyle) / checkstyle	28s
CI / basic (findbugs) / findbugs	1m 52s
CI / basic (rat) / rat	20s
CI / unit (grpc) / unit (grpc)	12m 0s
CI / unit (misc) / unit (misc)	7m 8s
CI / unit (server) / unit (server)	12m 52s
CI / repro / repro	1m 29s
CI / compile (17) / compile (17)	1m 9s
CI / compile (21) / compile (21)	1m 12s
CI / compile (11) / compile (11)	59s
CI / coverage	0s
	40m 45s

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