add new scan head power cycle function ScanHead.Reboot
add ability to set a ScanWindow per laser/camera
add new polygonal window function ScanWindow.CreateScanWindowPolygonal
add new scan data masking function ScanHead.CreateExclusionMask and ScanHead.SetExclusionMask
add new beta feature brightness correction functions ScanHead.CreateBrightnessCorrection and ScanHead.SetBrightnessCorrection in the JoeScan.Pinchot.Beta namespace
change datatype of X/Y data in Point2D from double to float