Added segment chooser when skipping multiple segments.

Now the skip notice supports skipping multiple segments.

public/_locales/en/messages.json

@@ -566,5 +566,8 @@
     },
     "nonMusicCategoryOnMusic": {
         "message": "This video is categorized as music. Are you sure you would like to submit segments with non-music categories? Unless this video is not actually music, you should not be submitting this segment. Please read the guidelines if you are confused."
+    },
+    "multipleSegments": {
+        "message": "Multiple Segments"
     }
 }