Tries to add named arguments to snippet files (might be impossible).

Snippets currently allow easy reusability of small html snippets. Snippets are located under a named path and loaded in by extending the `SnippetHandler` so that e.g. `UI::css(...)` loads the css snippet within the snippet handlers directory with the name `css.html`.

# Checklist
- [x] Understand the magic (`__callStatic`) [here](https://github.com/SEP007/lmvc-modules/blob/master/lib/Scandio/lmvc/modules/snippets/SnippetHandler.php)
  - Well, it's not magic just PHP
- [ ] Evaluate possible solution
- [ ] Decide on implementation