MDF Import Tool and Function - with resampling/interpol​ation

imports a mdf

This mdf-import function is a modification of Stuarts MDF import tool. A resampling functionality to a unique time signal has been added to allow easy access to all signals and simplify plotting and other analysis with a comon time vector. The help file also shows a possibility to shorten all signals to the shortest vector to avoid the different length error message whilst plotting.