Explicitly add required fragments to the update-site

Fix #1420

Author: laeubi

org.eclipse.m2e.archetype.common/.classpath

@@ -6,6 +6,5 @@
 		</attributes>
 	</classpathentry>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
-	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
 </classpath>

org.eclipse.m2e.repository/category.xml

@@ -28,6 +28,16 @@
    <bundle id="com.google.gson.source"/>
    <bundle id="org.apache.commons.cli"/>
    <bundle id="org.apache.commons.cli.source"/>
+   <bundle id="org.eclipse.m2e.archetype.jdom2"/>
+   <bundle id="org.eclipse.m2e.archetype.jdom2.source"/>
+   <bundle id="org.eclipse.m2e.archetype.archetype-catalog"/>
+   <bundle id="org.eclipse.m2e.archetype.archetype-catalog.source"/>
+   <bundle id="org.eclipse.m2e.archetype.archetype-common"/>
+   <bundle id="org.eclipse.m2e.archetype.archetype-common.source"/>
+   <bundle id="org.eclipse.m2e.archetype.archetype-descriptor"/>
+   <bundle id="org.eclipse.m2e.archetype.archetype-descriptor.source"/>
+   <bundle id="org.eclipse.m2e.archetype.maven-artifact-transfer"/>
+   <bundle id="org.eclipse.m2e.archetype.maven-artifact-transfer.source"/>
    <category-def name="m2e" label="Maven Integration for Eclipse"/>
    <repository-reference location="https://download.eclipse.org/wildwebdeveloper/releases/1.1.0/" enabled="true" />
    <repository-reference location="https://download.eclipse.org/lsp4j/updates/releases/0.20.1/" enabled="true" />