Function mnemonicToEntropy

Reversible: Converts mnemonic string to raw entropy in form of byte array.

Example

const mnem = 'legal winner thank year wave sausage worth useful legal winner thank yellow';
mnemonicToEntropy(mnem, wordlist)
// Produces
new Uint8Array([
  0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f,
  0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f
])