Use both dedicated binning signals and sequencing reads used for assembly as input signals for binning

[lauralwd]

In the backmapping step, samples handed to bwa must include (1) the dedicated binning signals for each assembly. Added to that I want to dynamically also include sequencing files which where the base of that particular assembly, or at least those sequencing files originating from the same species.
Later I can choose which binning signals work best; for binning with metabat2 is quick. Backmapping and sorting can be very slow so I prepare all the files before I start manual work.

[lauralwd]

done, note that this may split up a single bin rather than differentiate between two genomes that are binned as one.