Create a `bdk_floresta` chain source crate

**Describe the enhancement**

The Floresta project uses technologies such as Utreexo, softchains and CBF to make integrating a full node in a wallet as easy as connecting to someone else's node. It's almost a no-brainer to support such magic in BDK.

According to @Davidson-Souza, if we make use of the [`foresta_wire`](https://docs.dlsouza.lol/floresta_wire/index.html) and [`floresta_chain`](https://docs.dlsouza.lol/floresta_chain/index.html) crates, it will be enough to create a revolutionary chain-source crate for BDK!

Let's start the discussion with the ticket.

**Use case**

Are you kidding me?

**Additional context**

Docs: https://docs.dlsouza.lol/floresta/
GitHub: https://github.com/Davidson-Souza/Floresta