New package: yargs-interactive (#27155)

* Add typings for yargs-interactive

* Use require to import yargs-interactive in test

types/yargs-interactive/index.d.ts

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+// Type definitions for yargs-interactive 2.0
+// Project: https://github.com/nanovazquez/yargs-interactive#readme
+// Definitions by: Steven Zeck <https://github.com/szeck87>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+declare function yargsInteractive(): yargsInteractive.Interactive;
+
+declare namespace yargsInteractive {
+    interface OptionData {
+        type: string;
+        describe: string;
+        default?: string | number | boolean;
+        prompt?: string;
+        options?: string[];
+    }
+    interface Option {
+        [key: string]: OptionData | { default: boolean };
+    }
+    interface Interactive {
+        usage(usage: string): Interactive;
+        interactive(options: Option): Interactive;
+        then(callback: (result: any) => any): Interactive;
+    }
+}
+
+export = yargsInteractive;

types/yargs-interactive/tsconfig.json

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

types/yargs-interactive/tslint.json

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

types/yargs-interactive/yargs-interactive-tests.ts

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+/// <reference types="node" />
+
+import yargsInteractive = require("yargs-interactive");
+
+const options: yargsInteractive.Option = {
+  color: {
+    describe: "What is your favorite color?",
+    prompt: "always",
+    type: "input",
+    default: "Blue",
+  }
+};
+
+yargsInteractive()
+  .usage("$0 <command> [args]")
+  .interactive(options)
+  .then((result: any) => {
+    console.log(result);
+  });