simAll: checksuccess function fixed
sweep: possible spherical geometries with an arbitrary number of materials. Voltages: For every Voltage specified by [Vdmin,Vdmax,NVD] an individual dot is crated (NVD =1). Stability of sweep.m not yet guaranteed.
tested and fixed sweep and simAll
Tested and verified Simulations of Sweep Params Radiuii and Voltage. simAll: checkSuccess fn: fixed some Bugs.