added - Wallet::insert_txout function to allow inserting foreign TxOuts - test to verify error when trying to calculate fee with missing foreign utxo - test to calculate fee with inserted foreign utxo updated - docs for Wallet::calculate_fee, Wallet::calculate_fee_rate, and TxGraph::calculate_fee with note about missing foreign utxos
BDK Chain
BDK keychain tracker, tools for storing and indexing chain data.