Draft: Resolve "Check resolving of features"

Closes #30 (closed)

features/org.oceandsl.configuration.feature/feature.xml

@@ -6,6 +6,7 @@
       provider-name="Software Engineering Group, Kiel University">
 
    <requires>
+      <import plugin="org.eclipse.equinox.common" version="3.13.0" match="greaterOrEqual"/>
       <import plugin="org.eclipse.xtext"/>
       <import plugin="org.eclipse.xtext.util"/>
       <import plugin="org.eclipse.emf.ecore"/>