feat: allow git remote repositories (https) as project locations

[Angelmmiguel]

Add support for git repositories as valid project locations. Now you can run a project directly from a remote repository. There are different options to configure the git repository. These are all the new options:

--git-commit <GIT_COMMIT>  Set the commit when using a git repository as project
--git-tag <GIT_TAG>        Set the tag when using a git repository as project
--git-branch <GIT_BRANCH>  Set the branch when using a git repository as project
--git-folder <GIT_FOLDER>  Change the directory when using a git repository as project

Here you have an example:

$ cargo run -- https://github.com/vmware-labs/wasm-workers-server.git --git-folder "examples/js-basic"
⚙️  Preparing the project from: https://github.com/vmware-labs/wasm-workers-server.git
⚙️  Loading routes from: /tmp/dd21e3cd6d0f515301e1c7070e562af06074d9e8d10566179f97dba47e74cec9/examples/js-basic
⏳ Loading workers from 1 routes...
✅ Workers loaded in 2.113770416s.
    - http://127.0.0.1:8080/
      => /tmp/dd21e3cd6d0f515301e1c7070e562af06074d9e8d10566179f97dba47e74cec9/examples/js-basic/index.js
🚀 Start serving requests at http://127.0.0.1:8080

It closes #147

Install missing language runtimes

Some workers require specific runtimes. For example, you need to download a Python or Ruby runtime to develop workers based on these languages. wws stores this information in the .wws.toml, so you can install them with wws runtimes install.

When pulling a repository is convenient to install the missing runtimes directly. However, we may not want to make this the default behavior as you need to download "arbitrary" binaries for Internet. For this reason, I added an option to install runtimes automatically, so you can enable it for projects you trust:

$ wws https://github.com/vmware-labs/wasm-workers-server.git --git-folder "examples/js-basic" --install-runtimes
$ # Or
$ wws https://github.com/vmware-labs/wasm-workers-server.git --git-folder "examples/js-basic" -i

[ereslibre]

Looks great. Very nice feature! LGTM, some comments from my side :)

[ereslibre]

LGTM, thanks @Angelmmiguel!

[ereslibre]

I have been looking for a better way to express this, but it requires let_chains and is unstable. :(

[Angelmmiguel]

Yeah, a new approach for "let chains" would be really great 😄. I will keep an eye on this. Thanks for the pointer.