Switched file headers to C comment style
Added timerManager with infinished tests

For some reason MOC doesn't want to parse Q_OBJECT macros
in headers, which annoys me greatly. For now I disabled those
inside every QObject/QWidget class and it still seems to work well.
I'll probably have to check this in the near future when I add
any signals/slots - for example for mouse/keyboard interaction.

For now I'll focus on making the rendering process work.