Toolbar Customize

Added two new toolbar buttons.

• rightmost multi-image sets slow speed, restarts scan, freeze at end, save both channels, or only one if not dual mode, restarts scan faster speed. Current speed 12
• +/- icon on right steps up or down mag in 1/2/5/10 steps between 100 x and 100 kx
• macros can call exe programs, could be used to sync Auger with other pc...