BasicCursor.cs sometimes creates null reference exception

[jomalli]

BasicCursor sometimes cannot find GazeManager.Instance because it is doing it from Awake().

The reason for this appears to be script execution order.

Solution: place all the Awake() code into the Start() function instead.

[StephenHodgson]

Not sure how many people use the Basic cursor but it might not be good that we change the Awake to Start because it might break the inherited classes.

[jomalli]

@HodgsonSDAS good point. Another solution would be to include script execution order in project settings, and place GazeManager before BasicCursor. Any other suggestions?

[StephenHodgson]

We just moved the trouble code into Start. Left everything else in place.