Move compositor, handler, editor, edit base parts for hierarchic platform to af3.hierarchic[.ui]

- Keep code ratings where possible

Remove unused PlatformArchitectureElementGroup model element
refs 2658

org.fortiss.af3.platform.raspberry.ui/trunk/META-INF/MANIFEST.MF

@@ -13,8 +13,3 @@ Bundle-ActivationPolicy: lazy
 Bundle-RequiredExecutionEnvironment: JavaSE-1.8
 Bundle-Vendor: fortiss GmbH
 Export-Package: org.fortiss.af3.platform.raspberry.ui
-Import-Package: org.fortiss.af3.platform.compose,
- org.fortiss.af3.platform.compose.base.hierarchical,
- org.fortiss.af3.platform.compose.base.hierarchical.elements,
- org.fortiss.af3.platform.model,
- org.fortiss.af3.platform.utils