JBIDE-16393 CordovaSim: Removing 'ripple-temp' and 'inspector-front-end' submodule. Adding files directly to plugins ('ripple-temp' files were added via subtree merge for saving the commit history)

subtree was added via the following command "git subtree add --prefix=plugins/org.jboss.tools.vpe.cordovasim.ripple/ripple git@github.com:yradtsevich/ripple-temp.git master"