Draft: Try to merge in Piero's changes
This should match what's in @pviscone's branch except for keeping also ROOT-based plotting and a few code fixes.
The changes from @pviscone wrt the current CMGRDF master are:
- add
AliasCollectionflow step - add support for 3D histograms
- add support for weighted plots
- add
Dummy(likeMarkerbut doesn't show up in the graph) - update php plots to a newer version that supports
- move DistRDF out of Experimental for ROOT >= 6.36
- lxdask_worker_submit: add
--accountingGroupand--toTransferoptions - support for globbing on xrootd paths (needs the python xrootd libraries)
- support for das queries in dataset names (for compatibility with Pietro's code until that one is updated to use CMGRDF.cms.DASSource for those applications), and for cropping a list of file by defining a slice