fixes AT shift strategy, adding writemodalresults to interface of shift strategy, adding new parameter for shiftRequired, testcase AT-PS

set torque reserve to 0, disable skip gears for downshift; computation of shift lines for FC-optimized AMT; missing model parrameters in declaration mode

optimize average acc torque preprocessing (reduce from 3 nested loops to two), reduce computation time from 1.8s to ~0.24s

 optimize calculation of gear rating: two separate loops, increase target value for search algorithm, only calculate values when needed, calculate velocity drop only up to max gradient

adapt testcase: allow few traction interruptions to be longer than specified in model data (i.e. due to gearshift right before a speed change (simulation interval can't be changed))

updated testcases with expected fuel consumption (slight changes due to shorter effective traction interruption)

default driver strategy: repeat handling of overspeed/gearshift as this may occur in different combinations