Restructure maven-plugins directory in svn

git-svn-id: https://svn.apache.org/repos/asf/servicemix/maven-plugins/tags/maven-plugins-pom-4@1139212 13f79535-47bb-0310-9956-ffa450edef68
tree: c6d05c9036636b438dc6f40b2b5ecdb9cfc514ac
  1. LICENSE
  2. NOTICE
  3. pom.xml