Added xtext resource impl

plugins/org.yakindu.sct.generator.java/META-INF/MANIFEST.MF

@@ -20,7 +20,8 @@ Require-Bundle: org.eclipse.jdt.core;bundle-version="3.5.0",
  org.yakindu.sct.generator.core;bundle-version="1.0.0",
  org.eclipse.jdt.launching;bundle-version="3.6.0",
  org.yakindu.sct.generator.genmodel;bundle-version="1.0.0",
- org.eclipse.xtext.xbase;bundle-version="2.0.0"
+ org.eclipse.xtext.xbase;bundle-version="2.0.0",
+ org.yakindu.sct.model.stext.resource;bundle-version="1.0.0"
 Bundle-Vendor: YAKINDU
 Export-Package: org.yakindu.sct.generator.java
 Bundle-ActivationPolicy: lazy