lodash: added set() method

lodash/lodash-tests.ts

@@ -1080,6 +1080,9 @@ result = <HasName>_.pick({ 'name': 'moe', '_userid': 'moe1' }, function (value,
     return key.charAt(0) != '_';
 });
 
+
+result = <{ a: { b: { c: number; }}[]}>_.set({ 'a': [{ 'b': { 'c': 3 } }] }, 'a[0].b.c', 4);
+
 result = <number[]>_.transform([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], function (r: number[], num: number) {
     num *= num;
     if (num % 2) {

lodash/lodash.d.ts

@@ -6235,6 +6235,20 @@ declare module _ {
             thisArg?: any): Picked;
     }
 
+    //_.set
+    interface LoDashStatic {
+        /**
+         * Sets the property value of path on object. If a portion of path does not exist it is created.
+         * @param object The object to augment.
+         * @param path The path of the property to set.
+         * @param value The value to set.
+         * @return Returns object.
+         **/
+        set<T>(object: T,
+            path: string|string[],
+            value: any): T;
+    }
+
     //_.transform
     interface LoDashStatic {
         /**