Adding ability to specify the inflow velocity profile type

[Brooke Stanislawski]

Currently, the inflow velocity profile type (e.g. uniform, logarithmic, etc) is determined based on the geometry_module. For example, if the user runs PVade using geometry_module: panels3d, a log law velocity profile is applied using the input parameters params.fluid.u_ref and params.pv_array.elevation.

Could we unlink this dependency and instead specify the inflow velocity profile in the input file?