Update 96 - Bugfixes & VSync toggle

Changes:

• Added vsync toggle in settings.
• The game now pauses and drops input when Steam Overlay is active.
• Added configurable zoom controls.
• Added configurable camera panning controls.
• Drag-selection os no longer active while in paint mode.

Bugfixes:

• The cursor could leave the screen.
• After rewind to arrival camera would not jump to new player position.
• The scrollbar in the mercenaries panel would not stick to the side.
• Pray & Spray, Mass Murder and Scientist achievements were not always granted correctly.
• Setting joint boss group did not set joint arm boss group.
• Tutorials were not marked as completed when loading pre-update saves.
• Mirror drag-selection did not split selection correctly when entire ship was selected.
• Dragging mirrored-selected parts would sometimes make them rotate unexpectedly.
• Resource inconsistency could occur when opening or closing editor.
• Destroyed drones could trigger "all ships destroyed" event, resulting in repeated rewards.
• Quest markers could sometimes be set in hostile territory, making them impossible to complete.