(cherry picked from commit 1814059b)

reading PEV job from file, adapting powertrain builder, creation of shift strategy, calculation of shift polygons for PEV
adapting PEV shift strategy: calculation of start gear, ignore effshift min gear ratio

changing thermal de-rating model of electric motor. adapting GUI, adpatin json file formats, adapting testcases

implementing electric machine de-rating: adding testcase, new model parameters (gui, writer, inputdata), adapt existing motor files,

allowing multiple electric motors at a single position - combine full-load curve, drag curve and map accordingly, new parameter mechancial efficiency
calculate max vehicle speed for BEVs
adapt driver strategy to handle BEVs
added testcase and new model data for BEV tests