MahApps.Metro and Font-Awesome-WPF changes
MahApps.Metro and Font-Awesome-WPF changes

- move MahApps.Metro to UI and Control libs
- add Font-Awesome-WPF lib
690486439/dotnet,velyo/dotnet,Microsoft/dotnet,richlander/dotnet,BruceForstall/dotnet,velyo/dotnet,Microsoft/dotnet,punker76/dotnet,BruceForstall/dotnet,punker76/dotnet,richlander/dotnet