tests/integration: amend lockTime example to allow redemption, add redepemtion examples
tests/integration: amend lockTime example to allow redemption, add redepemtion examples

bitcoinjs/bitcoinjs-lib,BitGo/BitGoJS,BitGo/BitGoJS,UdjinM6/bitcoinjs-lib-dash,blocktrail/bitcoinjs-lib,junderw/bitcoinjs-lib,BitGo/BitGoJS,BitGo/bitcoinjs-lib,visvirial/bitcoinjs-lib,visvirial/bitcoinjs-lib,oklink-dev/bitcoinjs,bitcoinjs/bitcoinjs-lib,janko33bd/bitcoinjs-lib,junderw/bitcoinjs-lib,BitGo/bitcoinjs-lib,BitGo/BitGoJS