Add guppy/medaka models, print out 'Description' column

[RaverJay]

Fixes #136 (and half of #142)

Report now includes:

• Guppy model if basecalling from fast5
• Medaka model if ARTIC is run (just realised that this is misleading/wrong if using nanopolish)
• If providing a samples.csv: If a column is named exactly 'Description', it is added to the output tables (this could be extended to others, or allow selection of the columns via parameters)

[replikation]

nice work, ill keep this open because we need the same for nextclade, and there is currently an "auto build" (similar to pangolin) in the works (nearly done). it will be also nanozoo/nextclade:nextcladeversion--databaseversion

[hoelzer]

Awesome, thx @RaverJay ! The "Description" col in the samplesheet is helpful - likely worth mentioning this feature also in the readme?

[hoelzer]

Here: https://github.com/replikation/poreCov#sample-sheet

[RaverJay]

Awesome, thx @RaverJay ! The "Description" col in the samplesheet is helpful - likely worth mentioning this feature also in the readme?

Done

[hoelzer]

Awesome, thx @RaverJay ! The "Description" col in the samplesheet is helpful - likely worth mentioning this feature also in the readme?

Done

Superb 👍

[replikation]

@RaverJay great work