Add raw transaction hex to `gettransaction` wallet RPC
Add raw transaction hex to `gettransaction` wallet RPC

This allows getting raw transaction data from the wallet even if the
transaction is no longer in the blockchain / mempool (for example if it
got orphaned due to malleability abuse).

domob1812/crowncoin,syscoin/syscoin,domob1812/crowncoin,syscoin/syscoin,Infernoman/crowncoin,Infernoman/crowncoin,Crowndev/crowncoin,Crowndev/crowncoin,domob1812/crowncoin,Crowndev/crowncoin,syscoin/syscoin,domob1812/crowncoin,Crowndev/crowncoin,Infernoman/crowncoin,domob1812/crowncoin,syscoin/syscoin,Infernoman/crowncoin,Crowndev/crowncoin,Infernoman/crowncoin,syscoin/syscoin,Infernoman/crowncoin,syscoin/syscoin,Crowndev/crowncoin,syscoin/syscoin,domob1812/crowncoin,syscoin/syscoin