feat: create a new "Install Dev Container feature" module

[phorcys420]

I think we should have an easy way to install Dev Container features in Coder workspaces (even outside of Dev Containers).

My reasoning behind that is that there is already a lot of great Dev Container features that you are currently unable to use with Coder without hacks.

There are also quite a lot of active modules that are used to maintain dependencies and collide w/ Coder modules (e.g nodejs and jupyterlab).

Given these points, I think we could replace part of our modules with existing Dev Container features and maybe migrate some of our existing features to contribute back to the Dev Container ecosystem.

---

Example usage

module "nodejs" {
  source   = "registry.coder.com/modules/install-devcontainer-feature/coder"
  
  # Ideally could be either a Git URL, a local folder or a path to an image
  # AFAIK the images are only used to store data and not really as proper images.
  feature = "ghcr.io/devcontainers/templates/javascript-node:4.0.2"
  
  version  = "1.0.0"
  agent_id = coder_agent.example.id
}