Add Various Settings Menus

[nicholas-maltbie]

Add configurable settings to the settings menu

• Gameplay menu for adjusting game settings (none as of now but possibly more in future)
• Video settings for resolution, fullscreen mode [Full-screen, Windowed, Borderless], texture quality, lighting quality, shadow quality (make these configurable as well, if this is too difficult it can be broken into a separate issue).
• Sound menu for adjusting volume of various sound effects
• Controls menu to remap control and sensitivity inputs for player controller
  • May need to support controller in addition to keyboard but keep to keyboard and mouse now

Have the ability to serialize and save these control settings and features (Saving and loading these features will be a future issue) For all selected screen resolutions, ensure that the UI is still usable. Making the UI auto-scale to new screen sizes will be a future issue.

[nicholas-maltbie]

Mostly finished from PR #87, #82, and #81. Future settings (that are non critical) include

1. Gamepad/controller support for inputs as well as for rebinding
2. Alternate inputs for each binding (a second configurable button for each control layout: gamepad, keyboard + mouse)
3. Reset all bindings as a setting (aka, clear all saved input bindings)
4. Reset all settings to default values (aka, clear ALL saved settings)

May want to include settings for gameplay or other options as well, but that is a future issue.