feat: RIP-7212 precompile for P256 ECDSA verification#184
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Why this should be merged
Implementation for ACP-204.
How this works
Implements RIP-7212 and an additional
Pack(hash,r,s,key)function with precompile-compatible output.How this was tested
Unit tests including fuzzing, test case from the proposed but unmerged geth implementation, and vectors from Project Wycheproof.