feat: addition of subcommands for CKB Indexer RPC #384

Job	Run time
security-audit	3m 23s
linters (ubuntu-latest)	2m 33s
integration-test (ubuntu-latest)	10m 55s
unit-test (ubuntu-latest)	2m 29s
linters (macos-11)	4m 26s
integration-test (macos-11)	1h 1m 2s
unit-test (macos-11)	3m 56s
unit-test (windows-2019)	4m 51s
ci	1s
	1h 33m 36s

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