MVP Lunatic CLI

[kosticmarin]

This PR adds a minimal Lunatic cli which consists of three commands (for now).

1. lunatic login - manages user credentials which are used to authenticate to the Platform (located in ~/.lunatic/lunatic.toml. This command is also used to refresh credentials once the "session" expires.
2. lunatic app create $NAME - bootstraps the starter project on the Platform with the given name and maps the local project to the remote one.
3. lunatic deploy - builds the wasm and uploads it to the project which was created with the previous command, once the wasm is uploaded the application is started on the Platform.

I've c/p the whole README I've added with this PR so it easier to understand.

Lunatic platform CLI

This platform-related subset of lunatic CLI app is a command-line interface tool that allows you authenticate, manage, build and deploy programs to the lunatic platform.

Getting Started

1. Before starting install Lunatic.

   cargo install lunatic-runtime

2. Create a new account in Lunatic Cloud. Then, login your Lunatic CLI and connect it with Your account.

   lunatic login

   Follow instructions displayed in Your terminal and authorize the CLI.

3. Create a new Lunatic Rust project (skip if you have an existing one).

   # Add the WebAssemby target
   rustup target add wasm32-wasi
   
   # Create a new Rust project
   cargo new hello-lunatic
   cd hello-lunatic
   # Initialize project for Lunatic 
   lunatic init

4. Setup Your project on the Lunatic Cloud.

   lunatic app create hello-lunatic

   This will create a lunatic.toml configuration file with the following content.

   project_id = 17
   project_name = "hello-lunatic"
   domains = ["73685543-25ce-462d-b397-21bf921873d6.lunatic.run"]
   app_id = 18
   env_id = 17

5. Deploy Your application.

   lunatic deploy

TODO's

• [x] clean up some of the unused modules from before
• [x] see if some messages when using the CLI can be improved
• [x] add support to ship user defined environment variables to the Platform along with WASM (perhaps via .env)
• [x] add support to ship user defined assets to Platform along with WASM (e.g. static files)