Implement `bdk_nakamoto` chain-source crate

[notmandatory]

This crate should use https://github.com/cloudhead/nakamoto to implement a chain-source crate.

Relevant Work

• Add Compact Block Filters Syncing #1055 This is based off an older version of BDK 1.0. BDK has changed a lot since then. However, this can be used as a template for future work.

[rajarshimaitra]

I think the cbf_node make sense. Weather we have it as lib crate or not, its still gonna be a "mininode". We can also later on create a standalone binary that can be synced with a descriptor, so that it can be used outside of context of BDK too?? But thats for far future.

I think existing codes in current compact_filters module can used to work on top of it. Having a separate repo will help in issue tracking too. Something like rust-electrum-client makes perfect sense..

[notmandatory]

Depending on how things go with #680 we may be able to close this.

[notmandatory]

This is being done via the Alpha 1.0.0 changes with a new bdk_nakamoto crate.