##Create Wallet functionality
####create_wallet
Create a new Blockchain.info wallet. It can be created containing a pre-generated private key or will otherwise generate a new private key. Returns a CreateWalletResponse instance.
Params:
password : str - password for the new wallet. At least 10 characters.
api_code : str - API code with the create wallets permission
priv : str - private key to add to the wallet (optional, keyword)
label : str - label for the first address in the wallet (optional, keyword)
email : str - email to associate with the new wallet (optional, keyword)
Usage:
require 'blockchain'
wallet = Blockchain::create_wallet('1234password', '58ck39ajuiw', label: 'Test wallet')