Precise and mobile controls with jump (#158)

[MarcusLongmuir]

Resolves #158.

This PR:

• Overhauls how the virtual joystick works to allow full 360 degree input and use PointerEvents which offer more precision than TouchEvent and also unifies across desktop and mobile usage.
• Adds a Jump button to the virtual joystick.
• Adds pinch-to-zoom on mobile.
• Reduces camera lerping to avoid the input lag that users had issues with.
• Resolves an issue where updating the hash in the window location whilst providing pointer input would cause a hitch in pointer events.

What kind of change does your PR introduce? (check at least one)

• Feature
• Refactor

Does your PR fulfill the following requirements?

• The title references the corresponding issue # (if relevant)