Add zzuf-maps as a map source

Author: mitchts

src/data/maps/pgm.json

@@ -165,6 +165,14 @@
                     "includes_url": "https://github.com/CasualModernPGM/ModernMaps/tree/master/includes",
                     "branch": "master",
                     "license_scope": "map"
+                },
+                {
+                    "maintainer": "zzufx",
+                    "repository": "zzuf-maps",
+                    "url": "https://github.com/zzufx/zzuf-maps",
+                    "includes_url": "https://github.com/CasualModernPGM/ModernMaps/tree/master/includes",
+                    "branch": "master",
+                    "license_scope": "map"
                 }
             ]
         }