hicQuickQC CLI quirks

[bernt-matthias]

Might it be that you should

- if args.danglingSequence:
+ if args.restrictionCutFile

over here: https://github.com/deeptools/HiCExplorer/blob/c1e9e92773770dad6ddb002ed7f8522b1dfa56ca/hicexplorer/hicQuickQC.py#L120

But all theses if statements might be dropped anyway since the arguments of optional?

Additionally: The CLI help states "The Alternatively, a fixed binSize can be defined instead", but the binSize seems to be hardcoded.