Begin adding Bones definition files

Typescript/Bones/babylon.bone.d.ts

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+/// <reference path="../babylon.d.ts" />
+
+declare module BABYLON {
+    class Bone {
+        name: string;
+        children: Bone[];
+        animation: Animation[];
+
+        constructor(name: string, skeleton: Skeleton; parentBone: Bone, matrix: Matrix);
+
+        getParent(): Bone;
+        getLocalMatrix: Matrix;
+        getAbsoluteMatrix: Matrix;
+        updateMatrix(matrix: Matrix): void;
+        markAsDirty(): void;
+    }
+}

Typescript/Bones/babylon.skeleton.d.ts

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+/// <reference path="../babylon.d.ts" />
+
+declare module BABYLON {
+    class Skeleton {
+        id: number;
+        name: string;
+        bones: Bone[];
+
+        constructor(name: string, id: number, scene: Scene);
+
+        getTransformMatrices(): Matrix[];
+        prepare(): void;
+        getAnimatables(): Animation[];
+        clone(name: string, id: number): Skeleton;
+    }
+}