As for maker, to use this feature set segwit = false
in the POLICY section of the config file.
This commit does *not* include support in the GUI.
Additionally, minor fixes to utility scripts for non-sw wallets,
and updated add-utxo tool to support non-sw wallets.
Bugfixes to wallet_utils to support non-sw wallets
and signmessage.
Utilises signing with SINGLE|ANYONECANPAY sighash flags.
Allows one party as "maker", with tainted utxo (e.g. only
valid on one chain), to create a custom single (input, output)
pair that receives slightly more than it spends (to avoid DOS),
and pass it to a "taker" who then combines with own input
utxos and outputs and broadcasts.
Valid for p2pkh or p2sh-p2wpkh, although wallets here are only
the latter.
AdamISZ