Description of Font awesome import into Moodle

Font awesome comes in 3 parts relating to Moodle.

1. The font. Put the woff font in lib/fonts_core/fontawesome-webfont.woff. Update lib/thirdpartylibs.xml.
2. SCSS. Replace the SCSS in this folder (/theme/boost/scss/fontawesome). Update theme/boost/thirdpartylibs.xml.
2. Less. Replace the Less in this folder (/theme/bootstrapbase/less/fontawesome). Update theme/bootstrapbase/thirdpartylibs.xml.
