Major clean up and reorganization

- Upgraded to Godot 4
- Just remembered the basic principles are based on a tile editor, and dramatically simplified from there. Derp.
- New state machine and license display add-ons.
- Re-licensed under the GPL because Micropolis' assets aren't under a separate one.

json/saves/defualt.json

@@ -1,4 +1,4 @@
 {
-    "city": "Metropolis",
-    "mayor": "Defacto"
-}
+	"city": "Metropolis",
+	"mayor": "Defacto"
+}

json/saves/octy_file.json

@@ -1,43 +1,43 @@
 {
-    "city": "Furtropolis",
-    "mayor": "Defacto",
-    "version": "0.1",
-    "zones": {
-        "commercial": {
-            "1": {
-                "x": 654,
-                "y": 564
-            },
-            "2": {
-                "x": 321,
-                "y": 85
-            }
-        },
-        "residential": {
-            "1": {
-                "x": 315,
-                "y": 564
-            },
-            "2": {
-                "x": 874,
-                "y": 843
-            }
-        },
-        "industrial": {
-            "1": {
-                "x": 156,
-                "y": 489
-            },
-            "2": {
-                "x": 845,
-                "y": 314
-            }
-        }
-    },
-    "buildings": {
-        "coal": {
-            "x": 648,
-            "y": 654
-        }
-    }
-}
+	"city": "Furtropolis",
+	"mayor": "Defacto",
+	"version": "0.1",
+	"zones": {
+		"commercial": {
+			"1": {
+				"x": 654,
+				"y": 564
+			},
+			"2": {
+				"x": 321,
+				"y": 85
+			}
+		},
+		"residential": {
+			"1": {
+				"x": 315,
+				"y": 564
+			},
+			"2": {
+				"x": 874,
+				"y": 843
+			}
+		},
+		"industrial": {
+			"1": {
+				"x": 156,
+				"y": 489
+			},
+			"2": {
+				"x": 845,
+				"y": 314
+			}
+		}
+	},
+	"buildings": {
+		"coal": {
+			"x": 648,
+			"y": 654
+		}
+	}
+}