[88588] Merge org.eclipse.wst.xsd.contentmodel and org.eclipse.wst.xsd.validation into org.eclipse.wst.xsd.core
[88588] Merge org.eclipse.wst.xsd.contentmodel and org.eclipse.wst.xsd.validation into org.eclipse.wst.xsd.core

ttimbul/eclipse.wst,ttimbul/eclipse.wst,ttimbul/eclipse.wst