ExtKey.Parse doesn't support zprv prefixes for private keys #1280
Description
I'm trying to use "zprv..." private keys on MainNet and the method ExtKey.Parse doesn't support it.
Need to add these prefixes for supporting these key versions
.AddBase58Prefix(Base58Type.EXT_SECRET_KEY, new byte[] { 0x04, 0xB2, 0x43, 0x0C }) // zprv .AddBase58Prefix(Base58Type.EXT_PUBLIC_KEY, new byte[] { 0x04, 0xB2, 0x47, 0x46 }) // zpub