Add document ready & linear-gradient (#27367)

* Add document-ready

* Add linear-gradient

types/document-ready/document-ready-tests.ts

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+import ready = require("document-ready");
+ready(() => {
+    // on load
+});

types/document-ready/index.d.ts

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+// Type definitions for document-ready 2.0
+// Project: https://github.com/bendrucker/document-ready#readme
+// Definitions by: Jack Works <https://github.com/Jack-Works>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+declare function ready(callback: () => void): void;
+export = ready;

types/document-ready/tsconfig.json

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+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "strictFunctionTypes": true,
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "document-ready-tests.ts"
+    ]
+}

types/document-ready/tslint.json

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

types/linear-gradient/index.d.ts

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+// Type definitions for linear-gradient 1.0
+// Project: https://github.com/karmadata/linear-gradient#readme
+// Definitions by: Jack Works <https://github.com/Jack-Works>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+type Color = [number, number, number];
+declare class Gradient {
+    constructor(colors: Color[]);
+    /**
+     * the input value should be normalized to the range between 0 and 1
+     */
+    calcArray(normalizedPercent: number): Color;
+    /**
+     * the input value should be normalized to the range between 0 and 1
+     */
+    calcHex(normalizedPrecent: number): string;
+}
+export = Gradient;

types/linear-gradient/linear-gradient-tests.ts

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+import Gradient = require("linear-gradient");
+
+// instantiate with an RGB palette
+const grad1 = new Gradient([
+    [0, 0, 0],
+    [0, 80, 0],
+    [0, 160, 80],
+    [80, 80, 80],
+    [160, 40, 40],
+    [255, 0, 0]
+]);
+
+// now we are ready to calculate the colors
+// the input value should be normalized to the range between 0 and 1
+
+(grad1.calcArray(0)); // -> [0,0,0] (0 -> first color of the palette)
+(grad1.calcArray(1)); // -> [255,0,0] (1 -> last color of the palette)
+(grad1.calcArray(0.25)); // -> [0,100,20] (weighted average between [0,80,0] and [0,160,80])
+(grad1.calcArray(0.5));
+(grad1.calcArray(0.75));
+
+(grad1.calcHex(1));  // -> '#ffffff'
+(grad1.calcHex(0.25));   // -> '#006416'

types/linear-gradient/tsconfig.json

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+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "strictFunctionTypes": true,
+        "esModuleInterop": true,
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "linear-gradient-tests.ts"
+    ]
+}

types/linear-gradient/tslint.json

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