std.crypto: expose Fe isOdd & add basic parity tests for each pcurve (#15734)
* std Secp256k1 Scalar: expose Fe isOdd & add basic parity test
* std.crypto: also add Scalar.isOdd convenience fn for p256 and p384 curves
df909da5d8Chris Heyes committed on 5/21/2023, 11:00:48 AM· committed by GitHubparentb7cb883