Moved user input from camera to usercontrol

Moved camera movement from CameraMangager.moveCamera to
UserControls.moveCamera
Added Prop and Pragma once
Updated Prop

Added extract information for prop
Added Earth
Removed output
Updated Project file
tidy up
Added sputnik
Updating load props
Fixed build errors
Updating new prop loading
Removed unused obj loader
Performance and safety updates to tiny obj loader

Passing variables by reference is generaly faster and prefered in C++
Updates to allow new Prop loading

ContentManager should now be able to load Props from classes.  Prop
loading as also be rewritten, splitting the large load_model into several
smaller one in the new loading.

load_model and load_prop_list have been marked as DEPRECATED.
Updating project file
Fixed ContentManager not initialising

Changed return false to true
Initialised model geometry
New rendering partially working
Fixed New Rendering
Removed old content loading routines
Added Moon to render