Zipped trajectories in Zenodo or elsewhere

@JHoeflich1 has implemented the possibility to include zipped files into the IDP databank: https://github.com/ohsOllila/IDPdatabank/pull/21

It would be very nice to implement this for lipids also. The amount of data could be then increased by adding all simulations with zipped trajectories that are already in Zenodo (and potentially elsewhere).