Implement leading Edge/Important genes for other analysis types other than GSEA

[risserlin]

In GSEA analysis leading edge is a parameter loaded in. For a given geneset the genes part of the leading edge are highlighted in yellow. This is very useful when looking at individual genesets.

Implement a similar feature for genesets other than GSEA. For example:
Run analysis with gprofiler on a subset of genes
Create EM using expression set that has all genes (not just the subset of differential used to calculate enrichments)
In expression viewer highlight genes that were queried in gProfiler (in the new output file this will be column 6 in the generic file)

currently the genesets are filtered based on the column 6 of the generic file. This would require a change to the way generic input is processed.

Maybe add toggle in the interface to say if you want to filter the genesets by column 6 or use those as "leading edge".