Take circularity into account when applying post-classification filters

[apcamargo]

In response to Issue #23, geNomad's post-classification filters should be refined to take into account the circularity/completeness of input sequences. This could prevent the erroneous exclusion of legitimate plasmids due to the current stringent filtering criteria aimed at genomic island fragments.

Key Points:

• Use circularity data (DTRs or user input) to adjust post-classification filters, making them more lenient for complete, circular sequences.