[elements-tx] Add ASSET argument to MutateTxAddOutAddr instead of only allowing the bitcoin asset.
[elements-tx] Add ASSET argument to MutateTxAddOutAddr instead of only allowing the bitcoin asset.

tdudz/elements,kallewoof/elements,tdudz/elements,tdudz/elements,kallewoof/elements,tdudz/elements,kallewoof/elements,tdudz/elements,kallewoof/elements,tdudz/elements,kallewoof/elements,kallewoof/elements