Emergency services, key rebinding, lots of fixes

New controls menu and Key rebinding:

The old controls menu has been replaced with a brand new one with a nicer layout and proper descriptions for every entry. It also allows you to reassign keys for mouse/keyboard, with some new extra options to split up keys which do multiple things by default. So if for example you wanted a key specifically for resetting the train (without having to hold it) you can now set that.

New graphics menu options:

• Field of view sliders to change the horizontal FoV for building and train driving.
• Resolution options 

Emergency services:

Along with the usual headlights, these vehicles also have a set of emergency lights which can be toggled in the same way (left click on the vehicle after placing it)

• Police Car
• Ambulance
• Fire Engine

• Police Officer
• Paramedic
• Firefighter
• Doctor

Changes:

• Improved the precision of track placement (may help prevent random derailments)
• The tutorial now highlights keybindings and important words
• Fixed creating invisible copies when placing multiple objects without moving
• Fixed being able to open build mode menus while transitioning to train mode
• Fixed trains being stopped by turntables on the level below them
• Added some missing LoD meshes
• The 'Controls' button now takes you to the appropriate menu depending on whether you're using keyboard/mouse or a controller
• Improved the behaviour of gamepad navigation in the graphics menu
• Fixed various issues caused by trying to close menus with gamepad B/Start
• Fixed gamepads sometimes choosing the wrong buttons on menus
• Made certain lists loop back to the start after going through all options with a gamepad
• Fixed certain passengers not having their hair colour randomised
• Improvements to main menu button designs 
• Fixed E not working
• Fixed fireworks never loading their high resolution textures
• Fixed the Christmas lights on the Bedroom table derailing the train