Add CoolStation (#17)

Author: TamberP

tree.dot

@@ -182,6 +182,7 @@ digraph G {
 		"Fallout 13 (Old)"              -> "Fallout 13" [color = red]
 		"Fallout 13 (Old)"              -> "WASTELANDS: Lost Day"
 		"Goonstation (Open Source)"     -> "BeeStation Clover"
+		"Goonstation (Open Source)"     -> "CoolStation"
 		"Goonstation"                   -> "Goon 2009 Public SVN" [color = red]
 		"Goonstation"                   -> "Goon 2016 Release" [color = red]
 		"Goonstation"                   -> "Goonstation (Open Source)" [color = red]