Add m2eclipse configurator for portlet facets

If the pom.xml file contains portlet-api dependency, we would add the JBoss Core Portlet facet.
If the pom.xml file contains portletbridge dependencies, we would add the JBoss JSF Portlet facet.
if the project contains Seam, JBoss Core Portlet and JBoss JSF Portlet facet, we would add the JBoss Seam Portlet facet.