Update bdk_wallet to alpha 12

[thunderbiscuit]

This PR upgrades the (newly named!) bdk_wallet library to the alpha 12 version.

Also part of this are the upgrade to bdk_esplora (0.14.0), bdk_electrum (0.14.0), and the introduction of the new bdk_sqlite (0.1.0) persistence crate.

Note:

1. The diff is pretty big because all the imports using bdk are now switched to bdk_wallet.
2. I changed the names of the persistence files in the tests to .sqlite, as is common for those types of files (but is not required). This is also the naming used on the Rust bdk side, so I think it's a good fit anyway.
3. The core upgrade here for the sqlite persistence is surprisingly small: lines 41-42 in the wallet module.
4. I added the SqliteError type which is not used yet (should I remove it and wait to add it when we have a need?). The current places where the codebase can throw a sqlite error is on the wallet creation method, but this one can only throw one of the variants of the BdkSqliteError, the one where it's a wrapper for the rusqlite error. So I added that as a variant on the WalletCreationError (that's required), but I also added just the normal bdk Sqlite error just so this PR has it and we can use it in the future.

Changelog notice

Upgrades
  - Update bdk_esplora client to 0.14.0 [#544]
  - Update bdk_electrum client to 0.14.0 [#544]

Added
  - bdk_sqlite persistence [#544]

Removed
  - flat file persistence [#544]

[#544]: https://github.com/bitcoindevkit/bdk-ffi/pull/544

Checklists

All Submissions:

• I've signed all my commits
• I followed the contribution guidelines
• I ran cargo fmt and cargo clippy before committing

[reez]

love the new Amount type here and other places, v cool

[reez]

thanks for even remembering to update these spots, you're on it!

[reez]

thanks for doing things like this in this PR so we can have things like Arc<BdkTransaction> instead of Arc<bdk::bitcoin::Transaction>, makes it clean and I need to make sure I'm paying attention to this sort of stuff to for any of my new PR's

[reez]

ACK 65702f4

Really good job!

for :

I added the SqliteError type which is not used yet (should I remove it and wait to add it when we have a need?). The current places where the codebase can throw a sqlite error is on the wallet creation method, but this one can only throw one of the variants of the BdkSqliteError, the one where it's a wrapper for the rusqlite error. So I added that as a variant on the WalletCreationError (that's required), but I also added just the normal bdk Sqlite error just so this PR has it and we can use it in the future.

...I'm good with either decision. In testing on the iOS app i did happen to run into the variant on the WalletCreationError so that was nice.

I tested the bindings by building them locally and then using them on the BDK iOS app, and made some slight adjustments to make it transition smoothly on the iOS client just in case anyone is interested in taking a peek at that: bitcoindevkit/BDKSwiftExampleWallet#146