added a simple health route

ref #34

src/controllers/StatusController.ts

@@ -0,0 +1,23 @@
+import { Get, JsonController } from 'routing-controllers';
+import { OpenAPI } from 'routing-controllers-openapi';
+import { getConnection } from 'typeorm';
+
+@JsonController('/status')
+export class StatusController {
+
+    @Get()
+    @OpenAPI({ description: "Lists all tracks." })
+    get() {
+        let connection;
+        try {
+            connection = getConnection();
+        }
+        catch {
+            throw new Error("sth is wrong, i can feel it....")
+        }
+        return {
+            "controllers": "✔",
+            "database connection": "✔"
+        }
+    }
+}