added typings for morphdom (#26059)

* added typings for morphdom

* removed the empty namespace

types/morphdom/index.d.ts

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+// Type definitions for morphdom 2.3
+// Project: https://github.com/patrick-steele-idem/morphdom
+// Definitions by: arvitaly <https://github.com/arvitaly>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+interface MorphDomOptions {
+    getNodeKey?: (node: Node) => any;
+    onBeforeNodeAdded?: (node: Node) => Node;
+    onNodeAdded?: (node: Node) => Node;
+    onBeforeElUpdated?: (fromEl: HTMLElement, toEl: HTMLElement) => boolean;
+    onElUpdated?: (el: HTMLElement) => void;
+    onBeforeNodeDiscarded?: (node: Node) => boolean;
+    onNodeDiscarded?: (node: Node) => void;
+    onBeforeElChildrenUpdated?: (fromEl: HTMLElement, toEl: HTMLElement) => boolean;
+    childrenOnly?: boolean;
+}
+
+declare function morphdom(
+    fromNode: Node,
+    toNode: Node | string,
+    options?: MorphDomOptions,
+): void;
+
+export = morphdom;

types/morphdom/morphdom-tests.ts

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+import morphdom = require("morphdom");
+
+declare var node1: Node;
+declare var node2: Node;
+declare var el1: HTMLElement;
+declare var el2: HTMLElement;
+
+morphdom(node1, node2);
+morphdom(node1, node2, {});
+morphdom(node1, node2, {
+    childrenOnly: true,
+    getNodeKey: (node) => null,
+    onBeforeElChildrenUpdated: (el1, el2) => true,
+    onBeforeElUpdated: (el1, el2) => true,
+    onBeforeNodeAdded: (node) => node1,
+    onBeforeNodeDiscarded: (node) => false,
+    onElUpdated: (el) => null,
+    onNodeAdded: (node) => node2,
+    onNodeDiscarded: (node) => null,
+});

types/morphdom/tsconfig.json

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

types/morphdom/tslint.json

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