Added basic runner related errors

src/errors/RunnerErrors.ts

@@ -0,0 +1,27 @@
+import { JsonController, Param, Body, Get, Post, Put, Delete, NotFoundError, OnUndefined, NotAcceptableError } from 'routing-controllers';
+import { IsInt, IsNotEmpty, IsPositive, IsString } from 'class-validator';
+
+/**
+ * Error to throw when a runner couldn't be found.
+ * Implemented this ways to work with the json-schema conversion for openapi.
+ */
+export class RunnerNotFoundError extends NotFoundError {
+	@IsString()
+	name = "RunnerNotFoundError"
+
+	@IsString()
+	message = "Runner not found!"
+}
+
+/**
+ * Error to throw when two runners' ids don't match.
+ * Usually occurs when a user tries to change a runner's id.
+ * Implemented this ways to work with the json-schema conversion for openapi.
+ */
+export class RunnerIdsNotMatchingError extends NotAcceptableError {
+	@IsString()
+	name = "RunnerIdsNotMatchingError"
+
+	@IsString()
+	message = "The id's don't match!! \n And if you wanted to change a runner's id: This isn't allowed"
+}