feat: ecrecover precompile

[lispc]

0. merge the identity precompile PR
1. refactor sig_verify.rs, so instead of using apis like halo2_base::AssignedValue::copy_advice, we create a "r,s,v,hash,is_valid" table (called sig verify table?). Then both tx circuit and evm_circuit::ecrecover can lookup this table? Another benefit of this is, we no longer leak the complexity of halo2_base to other circuits. @lispc
2. evm_circuit side taks. @roynalnaruto

[kunxian-xia]

You need also to include the recovered_addr in the SignVerify table. That is, the table looks like

(v, r, s, msg_hash, recovered_addr, is_valid).

[roynalnaruto]

@lispc we can close this issue right?