Update endpoint to fetch a video data and add a new method/endpoint to fetch a clip data

Author: SamuelMoreira

lib/twitch/client.rb

@@ -289,7 +289,7 @@ def channel_videos(channel_id, options = {})
     end
 
     def video(video_id)
-      path = "/videos/#{video_id}/"
+      path = "/videos?id=#{video_id}"
       url = @base_url + path
 
       get(url)
@@ -314,6 +314,15 @@ def top_videos(options = {})
       get(url)
     end
 
+    # Clips
+
+    def clip(clip_id)
+      path = "/clips?id=#{clip_id}"
+      url = @base_url + path
+
+      get(url)
+    end
+
     # Blocks
 
     def blocks(user_id, options = {})