ENH: allow using BUSCOResult during MAG dereplication

[misialq]

Is your feature request related to a problem? Please describe.
Currently, the dereplication action picks the longest MAG as the representative of the MAG cluster. We could use BUSCO results to enable picking that representative using some quality metrics and/or length.

Describe the solution you'd like
The dereplicate-mags action should accept BUSCOResults as an optional parameter. Additionally, the user should be able to indicate how they want the representative to be selected:

• if no results were provided - pick the longest one
• if BUSCOResults were provided - pick the most complete one; in case of a tie, pick the longest one