Feature #3283: Support for the string method with swarms of trajectories in GROMACS
Optionally skip initial coordinates from being written to output coordinates
In e.g. the swarms of trajectories methods (see https://redmine.gromacs.org/issues/3283) one wants to start many short simulations from the same initial tpr file. This means that the same initial coordinates is written to the output trajectories for all replicas. It would be nice to disable the first frame from being written. In practice this could reduce the total size of xtc/trr files by up to 50 %.