feat: Created allFilter.

Signed-off-by: Marley Powell <Marley.Powell@exclaimer.com>

plugins/azure-devops/src/components/PullRequestsPage/lib/filters/allFilter.ts

@@ -0,0 +1,28 @@
+/*
+ * Copyright 2021 The Backstage Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { BaseFilter, FilterType } from './types';
+
+import { DashboardPullRequest } from '@backstage/plugin-azure-devops-common';
+import { PullRequestFilter } from '../types';
+
+export type AllFilter = BaseFilter & {
+  type: FilterType.All;
+};
+
+export function createAllFilter(): PullRequestFilter {
+  return (_pullRequest: DashboardPullRequest): boolean => true;
+}