Call faucet `mint_and_send` from a tx script

In the context of https://github.com/0xMiden/faucet/pull/204, I need to compile a tx script that executes the `mint_and_send` procedure of the `BasicFungibleFaucet` component. The Rust code follows this structure:
```rust
use crate::bindings::Account;

#[tx_script]
fn run(arg: Word, account: Account) {
...
account.mint_and_send(amount, tag, note_type, recipient);
}
```
The problem is that this requires the bindings of the component defined in miden-standards. Since the procedure is written in MASM, there's no Rust source to get the WIT from. Is it possible to manually reconstruct that WIT bindings? Is this approach correct, or should I do it differently?

Alternatives I already tried:
1. Avoid going through an account procedure, and instead call the `faucet::mint` kernel syscall directly from the script. This fails with `account procedure with procedure root … is not in the account procedure index map`. I think this is because the kernel restricts `faucet::mint` to invocations whose caller is an account procedure.
2. Using a thin wrapper account component that internally calls `faucet::mint`. This avoids the error above and works, but it would require that the node implemented this account component so that the faucet on the genesis is built with it.

The issue involves calling a MASM procedure from a Rust tx script, requiring WIT bindings for the `BasicFungibleFaucet` component. Start by examining the `crate::bindings::Account` module and the `mint_and_send` procedure signature. Look at the miden-standards repository to understand the component interface. Determine if manual WIT reconstruction is possible or if a different approach, like modifying the kernel syscall restrictions, is needed. Check the linked faucet PR #204 for context.

Scritto dal modello di indicizzazione a partire dal testo della issue.