Include niconico into geolocation-!cn category

data/geolocation-!cn

@@ -154,6 +154,7 @@ include:kingkonglive
 include:litv
 include:moov
 include:netflix
+include:niconico
 include:nintendo
 include:pixiv
 include:playstation

data/niconico

@@ -0,0 +1,10 @@
+# All .nico domains
+nico
+
+nicodic.jp
+nicomanga.jp
+niconico.com
+nicoseiga.jp
+nicovideo.jp
+nimg.jp
+simg.jp