squaredb 0.2.0

A new database that I decided to make.
Documentation
# SquareDB
The idea behind this was to create a new database, focusing on the data structures and algorithms behind it.

I am also really interested in learning Rust, and this was a way for me to learn it.

I made a really good note-taking system for this, which I will probably reuse.

<details>

<summary>My note-taking system</summary>

- For markdown notes I use [Vimwiki]https://vimwiki.github.io/vimwikiwiki
- For a kanban board I use [Nullboard]https://nullboard.io/preview
- For whiteboards I use [Excalidraw]https://excalidraw.com
- For diagrams I use [Nomnoml]https://nomnoml.com

</details>

## Roadmap
- [X] Create structures to store the database in-memory.
- [X] Implement RocksDb.
- [X] Implement a server with Axum.