Add typings for color support

types/color-support/color-support-tests.ts

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+import * as colorSupport from 'color-support';
+
+(() => {
+  const result = colorSupport();
+  if (!result) {
+    console.log('color is not supported');
+  } else if (result.has16m) {
+    console.log('\x1b[38;2;102;194;255m16m colors\x1b[0m');
+  } else if (result.has256) {
+    console.log('\x1b[38;5;119m256 colors\x1b[0m');
+  } else if (result.hasBasic) {
+    console.log('\x1b[31mbasic colors\x1b[0m');
+  } else {
+    console.log('Level: ', result.level);
+    console.log('this is impossible, but colors are not supported');
+  }
+})();
+
+(() => {
+  const result = colorSupport({
+    alwaysReturn: false,
+    env: process.env,
+    ignoreCI: true,
+    ignoreDumb: true,
+    ignoreTTY: true,
+    level: 2,
+    stream: process.stdout,
+    term: process.env.TERM,
+  }, {
+    has16m: false,
+    has256: false,
+    hasBasic: false,
+    level: 0,
+  });
+
+  if (!result) {
+    console.log('color is not supported');
+  } else if (result.has16m) {
+    console.log('\x1b[38;2;102;194;255m16m colors\x1b[0m');
+  } else if (result.has256) {
+    console.log('\x1b[38;5;119m256 colors\x1b[0m');
+  } else if (result.hasBasic) {
+    console.log('\x1b[31mbasic colors\x1b[0m');
+  } else {
+    console.log('Level: ', result.level);
+    console.log('this is impossible, but colors are not supported');
+  }
+})();

types/color-support/index.d.ts

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+// Type definitions for color-support 1.1
+// Project: https://github.com/isaacs/color-support#readme
+// Definitions by: Guketlev Dmitry <https://github.com/Yavanosta>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.2
+
+/// <reference types="node" />
+
+type ColorSupportLevel = 0 | 1 | 2 | 3;
+
+interface ColorSupportOptions {
+    alwaysReturn?: boolean;
+    env?: NodeJS.ProcessEnv;
+    ignoreCI?: boolean;
+    ignoreDumb?: boolean;
+    ignoreTTY?: boolean;
+    level?: ColorSupportLevel;
+    stream?: NodeJS.WriteStream;
+    term?: string;
+}
+
+interface ColorSupportResult {
+    level: ColorSupportLevel;
+    hasBasic: boolean;
+    has256: boolean;
+    has16m: boolean;
+}
+
+type ColorSupport = (options?: ColorSupportOptions,
+                     obj?: ColorSupportResult) => false | ColorSupportResult;
+
+declare var colorSupport: ColorSupport;
+
+export = colorSupport;

types/color-support/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",
+        "color-support-tests.ts"
+    ]
+}

types/color-support/tslint.json

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