Add type definitions for webpack-chunk-hash plugin (#20145)

types/webpack-chunk-hash/index.d.ts

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+// Type definitions for webpack-chunk-hash 0.4
+// Project: https://github.com/alexindigo/webpack-chunk-hash#readme
+// Definitions by: Matt Traynham <https://github.com/mtraynham>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+import webpack = require('webpack');
+
+export = WebpackChunkHash;
+
+declare class WebpackChunkHash extends webpack.Plugin {
+    constructor(options?: WebpackChunkHash.Options);
+}
+
+declare namespace WebpackChunkHash {
+    interface Options {
+    	/**
+    	 * @default 'md5'
+    	 * @description The hash algorithm to use
+    	 * @see {@link https://nodejs.org/api/crypto.html#crypto_crypto_createhash_algorithm_options}
+    	 */
+    	algorithm?: string;
+    	/**
+    	 * @default 'hex'
+    	 * @description The digest enconding to use
+    	 * @see {@link https://nodejs.org/api/crypto.html#crypto_crypto_createhash_algorithm_options}
+    	 */
+    	digest?: 'hex' | 'latin1' | 'base64';
+    	/**
+    	 * @default null
+    	 * @description A callback to add more content to the resulting hash
+    	 */
+    	additionalHashContent?(chunk: any): string;
+    }
+}

types/webpack-chunk-hash/tsconfig.json

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+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "webpack-chunk-hash-tests.ts"
+    ]
+}

types/webpack-chunk-hash/tslint.json

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+{ "extends": "dtslint/dt.json" }

types/webpack-chunk-hash/webpack-chunk-hash-tests.ts

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+import webpack = require('webpack');
+import WebpackChunkHashPlugin = require('webpack-chunk-hash');
+
+const a: webpack.Configuration = {
+	entry: 'test.js',
+	plugins: [
+		new WebpackChunkHashPlugin()
+	]
+};
+const b: webpack.Configuration = {
+	entry: 'test.js',
+	plugins: [
+		new WebpackChunkHashPlugin({algorithm: 'sha-256', digest: 'latin1', additionalHashContent: () => 'test'})
+	]
+};