test: use MiniWallet for p2p_filter.py
Summary:
This PR enables one more of the non-wallet functional tests (p2p_filter.py) to be run even with the Bitcoin Core wallet disabled by using the MiniWallet instead, as proposed in #20078. For this purpose, a MiniWallet method send_to is introduced first, which allows to create arbitrary outputs (scriptPubKey/amount). Note that the implementation for this is already present in feature_rbf.py (recently added in PR #22998), i.e. it is simply moved to the MiniWallet interface.
Backport of core#23079.
Also cherry-picked a required change from core#22998 that returns the txid from the wallet sendrawtransaction.
Test Plan:
ninja check-all
Reviewers: #bitcoin_abc, sdulfari
Reviewed By: #bitcoin_abc, sdulfari
Differential Revision: https://reviews.bitcoinabc.org/D12729