Merge #683: Fix wallet sync for RpcBlockchain

5eeba6c Various `RpcBlockchain` improvements (志宇)
5eb74af  Rpc: Manually add immature coinbase utxos (志宇)
ac19c19 New `RpcBlockchain` implementation with various fixes (志宇)

Pull request description:

  Fixes #677

  ### Description

  Unfortunately to fix all the problems, I had to do a complete re-implementation of `RpcBlockchain`.

  **The new implementation fixes the following:**
  * We can track more than 100 scriptPubKeys
  * We can obtain more than 1000 transactions per sync
  * Transaction "metadata" for already-syned transactions are updated when we introduce new scriptPubKeys

  **`RpcConfig` changes:**
  * Introduce `RpcSyncParams`.
  * Remove `RpcConfig::skip_blocks` (this is replaced by `RpcSyncParams::start_time`).

  ### Notes to the reviewers

  * The `RpcConfig` structure is changed. It will be good to confirm whether this is an okay change.

  ### Checklists

  #### All Submissions:

  * [x] I've signed all my commits
  * [x] I followed the [contribution guidelines](https://github.com/bitcoindevkit/bdk/blob/master/CONTRIBUTING.md)
  * [x] I ran `cargo fmt` and `cargo clippy` before committing

  #### New Features:

  ~* [ ] I've added tests for the new feature~
  * [x] I've added docs for the new feature
  * [x] I've updated `CHANGELOG.md`

  #### Bugfixes:

  * [x] This pull request breaks the existing API
  * [x] I've added tests to reproduce the issue which are now passing
  * [x] I'm linking the issue being fixed by this PR

ACKs for top commit:
  afilini:
    ACK 5eeba6c

Tree-SHA512: 7e0c9cfc4ef10fb07e4ac7f6fbf30cf28ca6395495c0237fa5bfa9a2fcbbd4d8ff980ffcf71ddd10bc052e4c07bc2c27f093dd3cd1c69cb29141455c693f2386

CHANGELOG.md

@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Add the ability to specify whether a taproot transaction should be signed using the internal key or not, using `sign_with_tap_internal_key` in `SignOptions`
 - Consolidate params `fee_amount` and `amount_needed` in `target_amount` in `CoinSelectionAlgorithm::coin_select` signature.
 - Change the meaning of the `fee_amount` field inside `CoinSelectionResult`: from now on the `fee_amount` will represent only the fees asociated with the utxos in the `selected` field of `CoinSelectionResult`.
+- New `RpcBlockchain` implementation with various fixes.
 
 ## [v0.20.0] - [v0.19.0]
 

examples/rpcwallet.rs

@@ -103,7 +103,7 @@ fn main() -> Result<(), Box<dyn Error>> {
         auth: bitcoind_auth,
         network: Network::Regtest,
         wallet_name,
-        skip_blocks: None,
+        sync_params: None,
     };
 
     // Use the above configuration to create a RPC blockchain backend