Add definitions for trim (#12292)

* Add definitions for trim

* comments from PR

trim/index.d.ts

@@ -0,0 +1,12 @@
+// Type definitions for trim 0.01
+// Project: https://www.npmjs.com/package/trim
+// Definitions by: Steve Jenkins <https://github.com/skysteve>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+declare function Trim(str: string): string;
+declare namespace Trim {
+    function left(str: string): string;
+    function right(str: string): string;
+}
+
+export = Trim;

trim/trim-tests.ts

@@ -0,0 +1,9 @@
+import trim = require("trim");
+
+var original: string = "  padded string  ";
+
+trim(original);
+
+trim.left(original);
+
+trim.right(original);

trim/tsconfig.json

@@ -0,0 +1,19 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "target": "es6",
+        "noImplicitAny": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "trim-tests.ts"
+    ]
+}