Vector2, Vector3: add instantiation methods

docs/api/vector2.md

 
 *Since:* 0.4.0
 
+## Instantiation
+
+### AR.Vector2
+
+`AR.Vector2(x: number, y: number): Vector2`
+
+Create a new vector with the provided coordinates.
+
+**Arguments**
+
+* `x: number`. x coordinate.
+* `y: number`. y coordinate.
+
+**Returns**
+
+A new vector.
+
+**Example**
+
+```js
+const zero = AR.Vector2(0, 0);
+```
+
 ## Properties
 
 ### x

docs/api/vector3.md

 
 *Since:* 0.4.0
 
+## Instantiation
+
+### AR.Vector3
+
+`AR.Vector3(x: number, y: number, z: number): Vector3`
+
+Create a new vector with the provided coordinates.
+
+**Arguments**
+
+* `x: number`. x coordinate.
+* `y: number`. y coordinate.
+* `z: number`. z coordinate.
+
+**Returns**
+
+A new vector.
+
+**Example**
+
+```js
+const zero = AR.Vector3(0, 0, 0);
+```
+
 ## Properties
 
 ### x

src/main.ts

 import { TrackerFactory } from './trackers/tracker-factory';
 import { SourceFactory } from './sources/source-factory';
 import { Viewport, ViewportSettings } from './core/viewport';
+import { Vector2 } from './geometry/vector2';
+import { Vector3 } from './geometry/vector3';
 import { Utils } from './utils/utils';
 
 declare const __AR_VERSION__: string;
     }
 
     /**
+     * Create a new 2D vector
+     * @param x x-coordinate
+     * @param y y-coordinate
+     * @returns a new 2D vector with the provided coordinates
+     */
+    static Vector2(x: number, y: number): Vector2
+    {
+        return new Vector2(x, y);
+    }
+
+    /**
+     * Create a new 3D vector
+     * @param x x-coordinate
+     * @param y y-coordinate
+     * @param z z-coordinate
+     * @returns a new 3D vector with the provided coordinates
+     */
+    static Vector3(x: number, y: number, z: number): Vector3
+    {
+        return new Vector3(x, y, z);
+    }
+
+    /**
      * Global Settings
      */
     static get Settings(): typeof Settings