- added sapling param in `struct iguana_info`
- each coin now have coin->sapling param (sapling=0 - sapling disabled, sapling !=0 - sapling enabled), we can set "sapling":1 in JSON when calling "addcoin" method.
- removed hardcoded "VRSC" and "VRSCTEST", now we should use "sapling" param in "addcoin" method
- removed unused zcash param in bitcoin_sigtxid
dpow_signrawtransaction used signrawtransaction RPC call to daemon
when obtain scriptSig for known notary vin. but signrawtransaction
RPC call in VRSC with activated sapling need to pass amount as required
parameter, otherwise it produced incorrect sig. spent many time
to understand this.
now we have correct format of unsigned rawtx with sapling support inside
dpow_notarytx and correct format of signed raw tx when usesigs=0.
but as we don't yet create sapling preimage - sigs are still incorrect,
and notary tx can't be broadcasted.