XGC-209 case

Error in the initialization of the case XGC-209 is discovered. The case is resubmitted with the following additional changes:

fm_nsmooth = 0   ! number of applications of smoothing in fmcfm_call
fm_nsmooth_er = 4 ! number of smoothing for radial electric field in the core region
fm_smooth_er_rhob = 0.95 ! rho, where transition between different level of smoothing is applied
fm_smooth_er_coef = 50. ! coefficient that controls sharpness of transition between different level of smoothness for Er
fm_nsmooth_chi = 2 ! number of applications of diffusivity smoothing in fmcfm_call
fm_wexb   = 1.0d-6

Note that the flow shear stabilization coefficient is reduced from 1e-5 to 1e-6.

Averaging over three neighboring points is used in this case.