compress DL2 data
See implementation in lstchain here: https://github.com/cta-observatory/cta-lstchain/blob/1280e47950726f92200e1624ca38c672760e9d77/lstchain/io/io.py#L771
Add filters from tables
:
complib='zlib'
complevel=5
filters = tables.Filters(complevel=complevel, complib=complib)
and implement our own write_dl2
function as long as not fixed in lstchain
(or use ctapipe?)