When running annotate-reads-card without the flag --p-include-wildcard the gene and allele mapping outputs contain the same information

[VinzentRisch]

RGI bwt (The underlying function used by annotate-reads-card) outputs annotations where alleles are mapped to ARGs in CARD ("allele_mapping_data.txt"). This output is then further summerized at the gene level and is outputted in an extra file ("gene_mapping_data.txt").
But when using annotate-reads-card without the flag --p-include-wildcard, there are not multiple alleles per gene in the database. This means that the gene mapping data contains in that case the same information as the allele mapping data.

To solve this issue:

• The annotate-reads-card action has to be altered to move an empty TXT file to the CARDGeneAnnotation artifact. And to move an empty feature table to the FeatureTable[Frequency] artifact.
• The validation of the CARDGeneAnnotationDirectoryFormat has to be altered to accept empty files.