add POST v2/wallets endpoint
add POST v2/wallets endpoint

bitjson/bitcore,troggy/bitcore-wallet-service,bitpay/bitcore-wallet-service,CryptArc/bitcore-wallet-service,matiu/bitcore-wallet-service,janko33bd/bitcore-wallet-service,bitpay/bitcore-wallet-service,bitpay/bitcore,cmgustavo/bitcore-wallet-service,kleetus/bitcore-wallet-service,kleetus/bitcore-wallet-service,cmgustavo/bitcore-wallet-service,matiu/bitcore-wallet-service,martindale/bitcore,initaldk/bitcore-wallet-service,troggy/bitcore-wallet-service,martindale/bitcore,bitpay/bitcore,bitjson/bitcore,bitjson/bitcore,martindale/bitcore,bitpay/bitcore,bitjson/bitcore,janko33bd/bitcore-wallet-service,martindale/bitcore,CryptArc/bitcore-wallet-service,bitpay/bitcore,initaldk/bitcore-wallet-service