Including our resolution-independence plugin in our custom LESS script.

### Issue
We are currently making ourselves version-independent for LESS. To promote the use of this script, we should also include our resolution-independence plugin and encapsulate all of this in a neat little package.

### Fix
We inject the resolution-independence plugin script and then initialize LESS to use this plugin when it's been loaded.

Enyo-DCO-1.1-Signed-off-by: Aaron Tam <aaron.tam@lge.com>