Refacto icon font. Now font is compiled from svgs

Instead of a predefined font, a list of svg are available in a folder.
The resulting font and icon classes are compiled from this folder.
This means you can easily remove, rename, or add an icon to ev-fdm.
[Indentation]
[Generating dist files]
Merge pull request #55 from Evaneos/icon-refacto

Icon refacto