Deploy rcp.help plugin in extracted format

*  Fixes images and links in binary product

Issue-Ref: 3852
Issue-Url: https://af3-developer.fortiss.org/issues/3852



Signed-off-by: Simon Barner <barner@fortiss.org>

org.fortiss.af3.rcp.help/META-INF/MANIFEST.MF

 Manifest-Version: 1.0
 Automatic-Module-Name: org.fortiss.af3.rcp.help
+Eclipse-BundleShape: dir
 Bundle-ManifestVersion: 2
 Bundle-Name: AF3 Online Help
 Bundle-SymbolicName: org.fortiss.af3.rcp.help;singleton:=true