Added type definitions for react-loader-spinner (#40080)

* Added type definitions for react-loader-spinner

* Added version reference of react-loader-spinner to 3.1

* Changed TypeScript version reference to 3.6

* Removed JSDoc for possible types

* Removed I prefix on the LoaderProps interface

types/react-loader-spinner/index.d.ts

@@ -0,0 +1,39 @@
+// Type definitions for react-loader-spinner 3.1
+// Project: https://github.com/mhnpd/react-loader-spinner
+// Definitions by: Rayhan Wirjowerdojo <https://github.com/rayhanw>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 3.6
+
+import { FC } from 'react';
+
+type Types =
+    | 'Audio'
+    | 'BallTriangle'
+    | 'Bars'
+    | 'Circles'
+    | 'Grid'
+    | 'Hearts'
+    | 'Oval'
+    | 'Puff'
+    | 'Rings'
+    | 'TailSpin'
+    | 'ThreeDots'
+    | 'Watch'
+    | 'RevolvingDot'
+    | 'Triangle'
+    | 'Plane'
+    | 'MutatingDots'
+    | 'None'
+    | 'NotSpecified';
+
+interface LoaderProps {
+    type?: Types;
+    color?: string;
+    timeout?: number; // in milliseconds
+    height?: number;
+    width?: number;
+    visible?: boolean | string;
+}
+
+declare const Loader: FC<LoaderProps>;
+export default Loader;

types/react-loader-spinner/test/react-loader-spinner-tests.tsx

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+import * as React from 'react';
+import Loader from 'react-loader-spinner';
+
+const App = () => {
+    return (
+        <div>
+            <Loader type="Audio" color="#8000FF" timeout={3000} height={80} width={80} visible={true} />
+        </div>
+    );
+};

types/react-loader-spinner/tsconfig.json

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+{
+  "compilerOptions": {
+    "module": "commonjs",
+    "lib": [
+      "es6"
+    ],
+    "noImplicitAny": true,
+    "noImplicitThis": true,
+    "strictNullChecks": true,
+    "strictFunctionTypes": true,
+    "baseUrl": "../",
+    "typeRoots": [
+      "../"
+    ],
+    "jsx": "react",
+    "types": [],
+    "noEmit": true,
+    "forceConsistentCasingInFileNames": true
+  },
+  "files": [
+    "index.d.ts",
+    "test/react-loader-spinner-tests.tsx"
+  ]
+}

types/react-loader-spinner/tslint.json

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