feat: format inputs and add CI defaults

[anxolin]

Description

Follow up on #4 with a coment from @fedgiac I didn't want to mix in the "default foundry" setup (I'd like to have a PR with just foundry as it is, and then we can do small PRs to add bits and pieces)

#4 (comment)

Testing Instructions

1. Open Counter.t.sol

Invert the order of the imports, so they look like

import {Test} from "forge-std/Test.sol";
import {Counter} from "../src/Counter.sol";

2. Run forge fmt
   It should invert again the imports leaving as they were

import {Counter} from "../src/Counter.sol";
import {Test} from "forge-std/Test.sol";

If you use vscode and you have a solidity plugin (like me), chances are that the IDE formats it on save already, so no even need to do step 2

[kaze-cow]

we should probably also add setting the default solc version. We will have to remember to bump over time, but will help keep projects reproducible.

current latest is 0.8.33 I think?

[anxolin]

Sounds good c3f3247

[fedgiac]

Looks good. I don't know enough about notes to choose between this and warnings, we can just pick any of the two and see how it goes.