Add definition for stream-meter

for https://www.npmjs.com/package/stream-meter

stream-meter/stream-meter-test.ts

@@ -0,0 +1,19 @@
+/// <reference path="./stream-meter" />
+import * as meter from 'stream-meter';
+
+var m:meter.StreamMeter = meter();
+process.stdin.pipe(m).pipe(process.stdout);
+
+var bytes: number;
+bytes = m.bytes;
+bytes = m.maxBytes;
+m.on("error", () => {});
+
+// with argument
+m = meter(129);
+
+// stream-meter support following constructing
+// but i cannot declare such object in typescript
+
+//m = new meter();
+//m = new meter(123);

stream-meter/stream-meter.ts

@@ -0,0 +1,21 @@
+// Type definitions for stream-meter
+// Project: https://github.com/brycebaril/node-stream-meter
+// Definitions by: TANAKA Koichi <https://github.com/mugeso/>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+/// <reference path="../node/node.d.ts" />
+
+declare module "stream-meter" {
+    import {Transform} from 'stream';
+
+    function m(maxBytes?:number):m.StreamMeter;
+
+    namespace m {
+        export interface StreamMeter extends Transform {
+            constructor(maxBytes?: number): StreamMeter;
+            bytes: number;
+            maxBytes: number;
+        }
+    }
+
+   export = m;
+}