Moving plane boundary condition due to etch reaction at surface

[wortiz]

Developer: Kristianto Tjiptowidjojo
Date: February 20, 2019
Description: It is mesh boundary condition akin to MOVING_PLANE but tied
to species equation to advance the rate of propagation.
Right now, it is hardwired to wet etching KOH reaction with CGS unit.
Usage: BC = MOVING_PLANE_ETCH SS
Example:
BC = MOVING_PLANE_ETCH SS 53 100

Capability: Species flux boundary condition due to etch reaction at surface
Developer: Kristianto Tjiptowidjojo
Date: February 20, 2019
Description: It is species flux condition at surface
Right now, it is hardwired to CGS unit.
Usage: BC = YFLUX_ETCH SS
Example:
BC = YFLUX_ETCH SS 53 0 100