Move oc_webroot, OC.webroot and OC.getRootPath() to the bundle

apps/files_sharing/tests/js/publicAppSpec.js

core/js/dist/main.js

core/js/dist/main.js.map

core/js/js.js

core/js/tests/specHelper.js

core/js/tests/specs/sharedialoglinkshareview.js

core/src/OC/index.js

core/src/OC/routing.js

core/src/OC/webroot.js

core/src/globals.js

lib/private/Template/JSConfigHelper.php