tests: Test Taproot PSBT signing with keys in other descriptor
tests: Test Taproot PSBT signing with keys in other descriptor

Test that the same keys included in other descriptors will still be able
to sign a PSBT that requires those keys.

jambolo/bitcoin,lateminer/bitcoin,fanquake/bitcoin,namecoin/namecoin-core,particl/particl-core,jambolo/bitcoin,namecoin/namecoin-core,fanquake/bitcoin,bitcoin/bitcoin,bitcoin/bitcoin,bitcoin/bitcoin,lateminer/bitcoin,namecoin/namecoin-core,AkioNak/bitcoin,jambolo/bitcoin,tecnovert/particl-core,kallewoof/bitcoin,tecnovert/particl-core,AkioNak/bitcoin,particl/particl-core,bitcoin/bitcoin,mruddy/bitcoin,lateminer/bitcoin,jambolo/bitcoin,kallewoof/bitcoin,tecnovert/particl-core,namecoin/namecoin-core,fanquake/bitcoin,lateminer/bitcoin,tecnovert/particl-core,tecnovert/particl-core,tecnovert/particl-core,kallewoof/bitcoin,lateminer/bitcoin,namecoin/namecoin-core,mruddy/bitcoin,fanquake/bitcoin,kallewoof/bitcoin,mruddy/bitcoin,mruddy/bitcoin,namecoin/namecoin-core,AkioNak/bitcoin,kallewoof/bitcoin,kallewoof/bitcoin,particl/particl-core,particl/particl-core,jambolo/bitcoin,fanquake/bitcoin,bitcoin/bitcoin,mruddy/bitcoin,particl/particl-core,bitcoin/bitcoin,fanquake/bitcoin,mruddy/bitcoin,AkioNak/bitcoin,lateminer/bitcoin,AkioNak/bitcoin,jambolo/bitcoin,particl/particl-core,AkioNak/bitcoin