Add `isCompressed` input to ECDSA `keygen` function ?

[larabr]

Thanks for the new release and continuous cleanups! Currently if I need the public key without compression, I need to still separately call getPublicKey. Would be nice if keygen took care of formatting the public key directly 🙂

noble-curves/src/abstract/weierstrass.ts

Lines 318 to 319 in 4c5478b

	keygen: (seed?: Uint8Array) => { secretKey: Uint8Array; publicKey: Uint8Array };
	getPublicKey: (secretKey: PrivKey, isCompressed?: boolean) => Uint8Array;