[sql] SQLCipher Encryption

Hi and thank you for everything you are doing. I just started using Tauri (+ this plugin) for a side Angular project and results were amazing so far.

One thing left to figure out, my app will be downloadable for free, with the condition to only use it in a single machine. My logical thinking for it is to encrypt the database using some per-device unique ID. So I was wondering if is it possible to use SQLCipher. Digging a bit into sqlx, I found this thread linking a great sample repo: https://github.com/launchbadge/sqlx/issues/2009

It seems possible by overriding libsqlite3-sys dependencies to use bundled SQLCipher:

```rust
# optional = false - force to build the package with sqlcipher feature enabled
libsqlite3-sys = { version = "0.24.1", optional = false, default-features = false, features = [
"bundled-sqlcipher"
] }
```

But I know nothing about RUST or SQLCipher and may be totally wrong. Is it possible to use SQLCipher through this library? can it be initialized with a key from the main.rs file?

Any help on choosing the right direction will be appreciated. Thank you.