feat: add contract command #2037

Job	Run time
Check gen-load-test-modes generated files	57s
typos	7s
Check gen-go-bindings generated files	1m 57s
Run loadtest (geth)	5m 1s
Check gen-json-rpc-types generated files	1m 59s
Test	1m 56s
Check gen-doc generated files	1m 56s
Run loadtest (anvil)	2m 28s
Install go package	30s
Check gen-proto generated files	41s
Lint	2m 2s
	19m 34s

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