feat(invoice): add guarded recipient substitution with co-signer approval#255

Kingsman-99 merged 3 commits into

Stellar-split:mainStellar-split/split-contracts:mainfrom

johnsaviour56-ship-it:guarded-recipient-substitutionjohnsaviour56-ship-it/split-contracts:guarded-recipient-substitutionCopy head branch name to clipboard