add stream-to-promise pkg

Signed-off-by: Arturas Molcanovas <a.molcanovas@gmail.com>

types/stream-to-promise/index.d.ts

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+// Type definitions for stream-to-promise 2.2
+// Project: https://github.com/bendrucker/stream-to-promise
+// Definitions by: Alorel <https://github.com/Alorel>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+/// <reference types="node"/>
+
+/**
+ * Return a promise which resolves when the input stream ends
+ * @param stream The input stream
+ * @returns A promise containing the stream output as a buffer
+ */
+declare function streamToPromise(stream: NodeJS.ReadableStream): Promise<Buffer>;
+
+/**
+ * Return s promise which resolves when the input stream ends
+ * @param stream The input stream
+ */
+declare function streamToPromise(stream: NodeJS.WritableStream): Promise<void>;
+
+declare namespace streamToPromise {} // Add a namespace so we can do import * instead of import x = require()
+
+export = streamToPromise;

types/stream-to-promise/stream-to-promise-tests.ts

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+import * as stp from 'stream-to-promise';
+import * as fs from 'fs';
+
+const read = fs.createReadStream(__filename);
+const write = fs.createWriteStream(__filename);
+
+const read$: Promise<Buffer> = stp(read);
+const write$: Promise<void> = stp(write);

types/stream-to-promise/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",
+        "stream-to-promise-tests.ts"
+    ]
+}

types/stream-to-promise/tslint.json

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