feat(newgrounds): add newgrounds.com and ngfiles.com to the domain list (#3993)

data/category-porn

@@ -47,6 +47,7 @@ include:mindgeek-porn
 include:missav
 include:moxing
 include:netflav
+include:newgrounds
 include:nudevista
 include:pawchive
 include:picacg
@@ -3566,7 +3567,6 @@ new-redtube.com
 new3dcomics.com
 newbienudes.com
 newbrazz.com
-newgrounds.com
 newhentai.org
 newlineporn.com
 newsensations.com

data/newgrounds

@@ -0,0 +1,2 @@
+newgrounds.com
+ngfiles.com