Rendering module automatically integrating with lmvc's render($args)

# Templating language integration for lmvc (by a lmvc-module)

This module's intention is to abstract from rendering with various templating languages in an `lmvc` application.
Depending on the application's configuration in its `config.json` it provides a homogenous API from lmvc's controllers.

## Checklist

- [ ] Decide upon initially supported templating languages
- [x] Update project's readme [see here](https://github.com/SEP007/lmvc-modules/tree/feature/tmpl-engine-rendering/lib/Scandio/lmvc/modules/rendering)
- [ ] Add interfaces and abstract classes
- [ ] Implement decided renderers

## Questions

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