feat(account): add newMnemonic

.travis.yml

@@ -10,6 +10,7 @@ install:
   - yarn bootstrap
 script:
   - yarn dist
+
 cache:
   directories:
     - '$HOME/.yarn-cache'

packages/harmony-account/src/wallet.ts

@@ -47,10 +47,13 @@ class Wallet {
     this.messenger = messenger;
   }
   /**
-   * @function generateMnemonic
+   * @function newMnemonic
    * @memberof Wallet
    * @return {string} Mnemonics
    */
+  newMnemonic(): string {
+    return Wallet.generateMnemonic();
+  }
 
   /**
    * @function addByMnemonic