Added Australia map with 7 bots and their flags (#306)

This is a map of the Australian country. It has 7 bots - the 7 states of
the country. This is my first time making a pull request, so I'm sorry
if i messed something up or something doesn't work.

src/client/components/Maps.ts

@@ -17,6 +17,7 @@ export const MapDescription: Record<keyof typeof GameMapType, string> = {
   SouthAmerica: "South America",
   Britannia: "Britannia",
   GatewayToTheAtlantic: "Gateway to the Atlantic",
+  Australia: "Australia",
 };
 
 @customElement("map-display")

src/client/utilities/Maps.ts

@@ -10,6 +10,7 @@ import asia from "../../../resources/maps/AsiaThumb.png";
 import mars from "../../../resources/maps/MarsThumb.png";
 import britannia from "../../../resources/maps/BritanniaThumb.png";
 import gatewayToTheAtlantic from "../../../resources/maps/GatewayToTheAtlanticThumb.png";
+import australia from "../../../resources/maps/AustraliaThumb.png";
 
 import { GameMapType } from "../../core/game/Game";
 
@@ -39,6 +40,8 @@ export function getMapsImage(map: GameMapType): string {
       return britannia;
     case GameMapType.GatewayToTheAtlantic:
       return gatewayToTheAtlantic;
+    case GameMapType.Australia:
+      return australia;
     default:
       return "";
   }

src/core/game/Game.ts

@@ -51,6 +51,7 @@ export enum GameMapType {
   Mars = "Mars",
   Britannia = "Britannia",
   GatewayToTheAtlantic = "Gateway to the Atlantic",
+  Australia = "Australia",
 }
 
 export enum GameType {

src/core/game/TerrainMapFileLoader.ts

@@ -36,6 +36,7 @@ const MAP_FILE_NAMES: Record<GameMapType, string> = {
   [GameMapType.SouthAmerica]: "SouthAmerica",
   [GameMapType.Britannia]: "Britannia",
   [GameMapType.GatewayToTheAtlantic]: "GatewayToTheAtlantic",
+  [GameMapType.Australia]: "Australia",
 };
 
 class GameMapLoader {

src/scripts/generateTerrainMaps.ts

@@ -17,6 +17,7 @@ const maps = [
   "SouthAmerica",
   "Britannia",
   "GatewayToTheAtlantic",
+  "Australia",
 ];
 
 async function loadTerrainMaps() {