added gameboard

gameboard-service/src/lib/customizations.ts

@@ -0,0 +1,24 @@
+const mediaCache: { [key: string]: string } = {};
+
+export async function fetchCustomizationSvgDef(type: string, name: string) {
+  const mediaPath = `snakes/${type}s/${name}.svg`;
+
+  if (!(mediaPath in mediaCache)) {
+    mediaCache[mediaPath] = await fetch(`https://media.battlesnake.com/${mediaPath}`)
+      .then((response) => response.text())
+      .then((textSVG) => {
+        const tempElememt = document.createElement("template");
+        tempElememt.innerHTML = textSVG.trim();
+        console.debug(`[customizations] loaded svg definition for ${mediaPath}`);
+
+        if (tempElememt.content.firstChild === null) {
+          console.debug("[customizations] error loading customization, no elements found");
+          return "";
+        }
+
+        const child = <HTMLElement>tempElememt.content.firstChild;
+        return child.innerHTML;
+      });
+  }
+  return mediaCache[mediaPath];
+}