Fixed pause when minimized and reduce FPS when not in focus.
Removed remaining Input code - input events.
Removed package/LZ4 code.
Removed libcpuid.
Use premake instead of cmake.
Astyle.
Renamed Urho3D namespace to sren.
Use global namespace for samples instead of sren.
Removed samples Controls.* files - unused.
Samples DebugHud: don't inherit from Object.