[US] As a Dev, I have a repository with Foundry and CI up and running

Requirements

Install Foundry and setup a CI eg: awesome-repo to have a look: https://github.com/sablier-labs/v2-core. Please also have a deep look on their tests folder.

[x] Create a branch dev forked from main (main will remain empty till the first mainnet deployment)
[x] Create a branch for this issue, following the WoW described in the issue #10 - Ways of Working. Note that PR to be created for all the tasks including this one, will point the devbranch, as described in the WoW
[x] Install Foundry, keeping the example smart contract and test available in the boilerplate
[x] Find the best way to have a linter available through Foundry, the IDE and in the CI
[x] In the readme, 1. describe how to install Foundry, and 2. describe the following key methods: h2 launch tests, h2 deploy on Anvil
[x] Prepare the CI, to have it running for all PRs created and merged, for any branches, doing 1. forge build and 2. forge test

[x] have a repository with Foundry installed, a CI up and running and a basic documentation on how to use Foundry