Add requirejs config

Added the configuration required by the webjars-locator to create the requirejs config.

PS: A somewhat related problem that I noticed while testing this -> if the version differs from the upstream.version, the locator will generate incorrect paths for requirejs. To fix this I would set the destination folder to `<destDir>${project.build.outputDirectory}/META-INF/resources/webjars/${project.artifactId}/${version}</destDir>` instead. I tested on local and the requirejs config then works correctly. However I don't know if this has any negative effects on other things so I did not include it in the patch. As long as the version and upstream.version are identical all should be good.