### Description
Allows movement around a 3D sketch **using a mouse or trackpad**.
* **Left-clicking** and dragging will **rotate** the camera position **about the center of the canvas** (not necessarily `0, 0, 0`, as you might have moved your camera before)
* **Right-clicking** and dragging will **shift** the camera position without rotation
* **Rolling the mouse wheel or the trackpad** (scrolling) will move the camera **closer or further from the center of the canvas.**
This function can be called with parameters dictating sensitivity to mouse movement along the X and Y axes. Calling this function without parameters is equivalent to calling `orbitControl(1,1)`. **To reverse direction of movement** in either axis, enter a negative number for sensitivity.
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