Added the schema-converter bundle to the list of targets

git-svn-id: https://svn.apache.org/repos/asf/directory/studio/branches/studio-tycho@1629029 13f79535-47bb-0310-9956-ffa450edef68
Added the schemaeditor plugin

git-svn-id: https://svn.apache.org/repos/asf/directory/studio/branches/studio-tycho@1629030 13f79535-47bb-0310-9956-ffa450edef68