Improve bdk::Wallet API

[notmandatory]

Tracking issue for improvements we want to make in the 1.0.0 bdk::Wallet API.

• Improve wallet address API #898
• Kill TransactionDetails #922
• Force wallet to use LocalChainOracle #923
• TxOdering::Shuffle is not shuffling the inputs #865

[notmandatory]

Questions to answer:

• multi-descriptor? or multi-descriptor, is descriptor trusted/non-trusted?
  see BDK Descriptor Improvements: Add multi descriptor capability in wallet #486
• is Wallet even still necessary?

[notmandatory]

I'm doing some bitcoin core repo archeology to identify privacy related wallet features. I started with the excellent core onboarding wallet write up from @willcl-ark, which mentioned choosing an "appropriate" change script type. I have identified the below features BDK's wallet API should support. Some of these we already support, the rest I'll make new BDK issues for. Please comment if you know of any I'm missing.

• Discourage fee sniping with nLockTime bitcoin/bitcoin#2340
• [wallet] use P2WPKH change output if any destination is P2WPKH or P2WSH bitcoin/bitcoin#12119
• [wallet] Use destination groups instead of coins in coin select bitcoin/bitcoin#12257
• wallet: "avoid_reuse" wallet flag for improved privacy bitcoin/bitcoin#13756
• wallet: shuffle coins before grouping, where warranted bitcoin/bitcoin#13808
• rpc: Shuffle inputs and outputs after joining psbts bitcoin/bitcoin#16512
• Native Descriptor Wallets using DescriptorScriptPubKeyMan bitcoin/bitcoin#16528, the part about 6 descriptors is useful
• IsUsedDestination should count any known single-key address bitcoin/bitcoin#17621
• wallet: Increase OUTPUT_GROUP_MAX_ENTRIES to 100 bitcoin/bitcoin#18418
• wallet: Strictly match tx change type to improve privacy bitcoin/bitcoin#23789
• wallet: generate random change target for each tx for better privacy bitcoin/bitcoin#24494
• wallet: avoid mixing different OutputTypes during coin selection bitcoin/bitcoin#24584

[notmandatory]

Closing this issue since all the original issues have been closed. Any other improvements we want to make should get their own issues.