Tokenised2 - Token Input

[cartoon-face]

• different way of implementation
• created new KeyInput like struct, TokenInput, for tokenised transactions
• tokenised transactions amount wont be added to main chain amounts as they are essentially a different "coin"
• TokenInput mimics most of KeyInput (standard txs) with some Multisig logic ports (deposit txs)
  • separate token balance from core chain balances, unlocked and locked
• deposits are implemented, yet?
• delete token tx if fails (pop tx)
• add sender context
• this is just a base, lots more needs to be added. a fair chunk was done in tokenised branch