Initial commit with decorator router, and some basic subsonic api code

src/subsonic/renderBackends/jsonp-responder.ts

@@ -0,0 +1,13 @@
+import {SubsonicErrorCode} from "../../enum/SubsonicErrorCode";
+import {JsonResponder} from "./json-responder";
+
+export class JsonPResponder {
+    static renderError(code: SubsonicErrorCode, message: string, callback: string): string {
+        const json = JsonResponder.renderError(code, message);
+        return `${callback}(${json});`;
+    }
+
+    static createResponse(element: string | null): string {
+        return '';
+    }
+}