ci: add special thanks script and mailmap

Author: hansl

.mailmap

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+# Please keep this file in alphabetical order, per section.
+
+
+################################################################################
+# Angular Team
+################################################################################
+Hans Larsen <[email protected]>
+Igor Minar <[email protected]>
+    Igor Minar <[email protected]> <[email protected]>
+
+
+################################################################################
+# Angular CLI Team
+################################################################################
+Filipe Silva <[email protected]>
+Mike Brocchi <[email protected]>
+
+
+################################################################################
+# OpenSource Contributors
+################################################################################
+Ashok Tamang <[email protected]>
+    Ashok Tamang <[email protected]> <[email protected]>
+Bram Borggreve <[email protected]>
+Carlo Dapor <[email protected]>
+    <[email protected]> <[email protected]>
+Cédric Exbrayat <[email protected]>
+    Cédric Exbrayat <[email protected]> <[email protected]>
+Charles Lyding <[email protected]>
+    Charles Lyding <[email protected]> <[email protected]>
+    Charles Lyding <[email protected]> <[email protected]>
+Chris Pearce <[email protected]>
+    Chris Pearce <[email protected]> <[email protected]>
+Dominic Watson <[email protected]>
+    Dominic Watson <[email protected]> <[email protected]>
+Jeremy Wells <[email protected]>
+Jan Kuri <[email protected]>
+Jim Cummins <[email protected]>
+    Jim Cummins <[email protected]> <[email protected]>
+John Papa <[email protected]>
+    John Papa <[email protected]> <[email protected]>
+Meligy <[email protected]>
+Michał Gołębiowski-Owczarek <[email protected]>
+Preston Van Loon <[email protected]>
+    Preston Van Loon <[email protected]> <[email protected]>
+Rodric Haddad <[email protected]>
+Shai Reznik <[email protected]>
+    Shai Reznik <[email protected]> <[email protected]>
+    Shai Reznik <[email protected]> <[email protected]>
+Stephen Cavaliere <[email protected]>
+    Stephen Cavaliere <[email protected]> <[email protected]>

scripts/special-thanks.ts

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+/**
+ * @license
+ * Copyright Google Inc. All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+// tslint:disable:no-implicit-dependencies
+import { logging } from '@angular-devkit/core';
+import { execSync } from 'child_process';
+
+export default function (opts: { sha: string }, logger: logging.Logger) {
+  const authors = execSync(`git log ${opts.sha}.. --format="%aN"`).toString();
+
+  const counter = new Map<string, number>();
+  for (const name of authors.split(/\r?\n/g)) {
+    if (name) {
+      const maybeCounter = counter.get(name);
+      counter.set(name, (maybeCounter || 0) + 1);
+    }
+  }
+
+  const sortedCount = [...counter.entries()].sort((a, b) => b[1] - a[1]);
+
+  for (const count of sortedCount) {
+    logger.info(count[0] + ' ' + count[1]);
+  }
+}