Removed legacy tileset code (#7658)

* Removed legacy tileset code

which was only used for the "Default" tileset

* Updated "Default" tileset to support new rendering

* Updated docs

* Fixed fogOfWar coloring bug

* Removed cityImage variable completely

* Renamed variable out to baseHexagon

* Moved color lerp out of for loop

* Renamed "Default" tileset to "Minimal"

* Made "HexaRealm" the games fallback tileset

* Implemented requested changes

* Readded accidentally removed variable

* Reverted updateTileImage back to foreach loop

Since indices are not needed anymore

* Regenerated game.atlas and game.png

android/assets/jsons/TileSets/Default.json

@@ -1,3 +0,0 @@
-{
-    "fallbackTileSet": null,
-}

android/assets/jsons/TileSets/Minimal.json

@@ -0,0 +1,20 @@
+{
+    "useColorAsBaseTerrain": "true",
+    "useSummaryImages": "true",
+    "fallbackTileSet": null,
+    "tileScales": {
+        "Atoll":0.35,
+        "City center":0.7,
+        "Faulout":0.35,
+        "Flood plains":0.35,
+        "Forest":0.35,
+        "Hill":0.35,
+        "Ice":0.35,
+        "Jungle":0.35,
+        "Lakes":0.35,
+        "Marsh":0.35,
+        "Mountain":0.5,
+        "NaturalWonder":0.5,
+        "Oasis":0.35
+    }
+}