02-09-28 new options

Introduced new options for estimating roughness and displacement when using multiple plants. New switches are Roughnessfunc and MultiRoughness. The allow alternative to Shaw & Perrieria functions and the make it possible to treat individual canopies separated or based on the highest canopy only.

Also deleted bug that made emergence before harvest impossible. After this change all plants with an initial GSI of 1 or more are considered emerged from the beginning of the simulation"

          PEJ/LK