feat: wrap apply_block_events / apply_block_connected_to_events

[darioAnongba]

Summary

BDK 2.3.0 added apply_block_events and apply_block_connected_to_events for block-by-block processing with event returns.

References

• BDK 2.3.0 release notes

Tasks

• Wrap apply_block_events method
• Wrap apply_block_connected_to_events method
• Add appropriate WASM types for block event data
• Add tests