* define Wallet class
- Wallet class is a utility for deriving a wallet composed of a keypair (publicKey/privateKey).
- A wallet can be derived from either a seed, mnemnoic, or entropy (array of random numbers).
- It provides functionality to sign/verify transactions offline.
Fix#1209
Calling: Uint8Array.from(undefined)
Throws:
TypeError: undefined is not iterable (cannot read property Symbol(Symbol.iterator))
at Function.from (<anonymous>)
* generateSeed: Pass only entropy and algorithm
* Update typescript and ripple-keypairs
* Improve unit tests
* Rename [Original Address] to [Classic Address] in test output