Bringing local and remote repository in line with one another and adding Github Actions to publish package

src/controllers/ErrorController.ts

@@ -0,0 +1,9 @@
+import { Request, Response, NextFunction } from 'express';
+
+export abstract class ErrorController {
+    /** A human readable string to describe the error this controller handles. */
+    public handlesError?: string;
+    
+    
+    abstract handle(error: unknown, req: Request, res: Response, next: NextFunction): any | Promise<any>;
+}