Curve Exposure alternative tool

[A.Evseeva]

http://revival.ru/public_soft/lua/moho_ ... e_exposure

Pick the end or start of curve exposure by mouse click.
Alt for placing Stroke on one or another side of picked point (to tune Start or End of Stroke Exposure)
Mouse movement works just like with built-in tool.
Works with only one picked Curve (not Shape like built-in tool)