UI aangepast

Buttons toegevoegd.
Merge remote-tracking branch 'origin/master'

Conflicts:
	Hello WorldDemo/Hello WorldDemo.v12.suo
	Hello WorldDemo/Hello WorldDemo/Form1.Designer.cs
	Hello WorldDemo/Hello WorldDemo/Form1.cs
	Hello WorldDemo/Hello
WorldDemo/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache
	Hello WorldDemo/Hello WorldDemo/obj/Debug/Hello
WorldDemo.csproj.FileListAbsolute.txt