Add loader and new formats

src/lib/server/helpers.ts

@@ -0,0 +1,14 @@
+import formats from '$lib/common/supportedFormats.json';
+
+const formatMime = new Map(Object.entries(formats))
+
+export const mimeTypeMap = formatMime;
+export const contentTypeFromFormat = (format: string): string => {
+    const toReturn: string | undefined = formatMime.get(format)
+
+    if (!toReturn) {
+        throw new Error("Unsupported format")
+    }
+
+    return toReturn;
+}