Add Font Awesome as required asset
Add Font Awesome as required asset

When a theme without Font Awesome as a required asset was used, the social link icons were not displayed correctly.

Former-commit-id: 0e91c289ca179a7134c4c5a144c349820b431c5f
MrKarlDilkington/concrete5,a3020/concrete5,triplei/concrete5-8,triplei/concrete5-8,mainio/concrete5,mainio/concrete5,haeflimi/concrete5,mainio/concrete5,concrete5/concrete5,a3020/concrete5,concrete5/concrete5,rikzuiderlicht/concrete5,olsgreen/concrete5,haeflimi/concrete5,hissy/concrete5,mlocati/concrete5,concrete5/concrete5,KorvinSzanto/concrete5,biplobice/concrete5,deek87/concrete5,jaromirdalecky/concrete5,concrete5/concrete5,biplobice/concrete5,biplobice/concrete5,mlocati/concrete5,KorvinSzanto/concrete5,jaromirdalecky/concrete5,biplobice/concrete5,deek87/concrete5,acliss19xx/concrete5,deek87/concrete5,KorvinSzanto/concrete5,MrKarlDilkington/concrete5,hissy/concrete5,hissy/concrete5,deek87/concrete5,jaromirdalecky/concrete5,haeflimi/concrete5,olsgreen/concrete5,haeflimi/concrete5,acliss19xx/concrete5,jaromirdalecky/concrete5,olsgreen/concrete5,rikzuiderlicht/concrete5,hissy/concrete5,mlocati/concrete5,acliss19xx/concrete5,MrKarlDilkington/concrete5,triplei/concrete5-8,rikzuiderlicht/concrete5,mlocati/concrete5