Compress *.dat files from parameter sweeps after run

Because they use enormous amounts of space!
Don't build drivers we don't need in parameter sweep

Also add/remove some parameter sets
Add new oscillating field and high damping mag paramters
Also parse the given root directory in parse.py if there are results in it
Fix for splitting data sets up by fields which are non-strings in parse.py

Required to "split on" refinement.