add pysim files and fix file endings

notebooks/Pysim/.gitignore

notebooks/Pysim/README.md

notebooks/Pysim/SimSys/DCbus.ipynb

notebooks/Pysim/SimSys/Kalman_ex1.dio

notebooks/Pysim/SimSys/Kalman_ex1.svg

notebooks/Pysim/SimSys/Kalman_ex2.svg

notebooks/Pysim/SimSys/Kalman_ex3.dio

notebooks/Pysim/SimSys/Kalman_ex3.svg

notebooks/Pysim/SimSys/LQRTest.ipynb

...ks/Pysim/SimSys/Octsim/@ACCurrentSource/ACCurrentSource.m

notebooks/Pysim/SimSys/Octsim/@Block/Block.m

notebooks/Pysim/SimSys/Octsim/@CCCS/CCCS.m

notebooks/Pysim/SimSys/Octsim/@CCVS/CCVS.m

notebooks/Pysim/SimSys/Octsim/@Capacitor/Capacitor.m

notebooks/Pysim/SimSys/Octsim/@Circuit/Circuit.m

notebooks/Pysim/SimSys/Octsim/@Constant/Constant.m

notebooks/Pysim/SimSys/Octsim/@CurrentSource/CurrentSource.m

notebooks/Pysim/SimSys/Octsim/@DTBlock/DTBlock.m

notebooks/Pysim/SimSys/Octsim/@DTDelay/DTDelay.m

notebooks/Pysim/SimSys/Octsim/@DTIntegral/DTIntegral.m