Add vec3 typings

vec3/vec3.d.ts

@@ -0,0 +1,29 @@
+declare module "vec3"{
+    export class Vec3{
+        constructor(x: number, y: number, z: number);
+        constructor(location: number[]);
+        constructor(location: {x: number; y: number; z: number});
+        constructor(locationStr: string);
+        
+        set(x, y, z): Vec3;
+        update(other: Vec3): Vec3;
+        floored(): Vec3;
+        floor(): Vec3;
+        offset(dx: number, dy: number, dz: number): Vec3;
+        translate(dx: number, dy: number, dz: number): Vec3;
+        add(other: Vec3): Vec3;
+        substract(other: Vec3): Vec3;
+        plus(other: Vec3): Vec3;
+        minus(other: Vec3): Vec3;
+        scaled(scalar: number): Vec3;
+        abs(): Vec3
+        volume(): number;
+        modulus(): Vec3;
+        distanceTo(other: Vec3): number;
+        equals(other: Vec3): boolean;
+        toString(): string;
+        clone(): Vec3;
+        min(other: Vec3): Vec3;
+        max(other: Vec3): Vec3;
+    }
+}

vec3/vec3.ts

@@ -0,0 +1,3 @@
+/// <reference path="./vec3.d.ts" />
+import * as vec3 from "vec3"
+let myVector = new vec3.Vec3(10, 10, 10);