add lamassu-mnemonic

bin/lamassu-mnemonic

@@ -0,0 +1,12 @@
+const fs = require('fs')
+const bip39 = require('bip39')
+
+const options = require('../lib/options')
+
+const seed = fs.readFileSync(options.seedPath, 'utf8').trim()
+
+const words = bip39.entropyToMnemonic(seed).split(' ')
+
+for (let i = 0; i < words.length; i += 6) {
+  console.log(words.slice(i, i + 6).join(' '))
+}