Fix bignumber creation when the input is of type number and has more than 15 significant digits.
Fix bignumber creation when the input is of type number and has more than 15 significant digits.

CityOfZion/neon-wallet,CityOfZion/neon-wallet,hbibkrim/neon-wallet,CityOfZion/neon-wallet,hbibkrim/neon-wallet