Improvements for cross prediction

[lukasmueller]

Expected Behavior

• add pull down menu for accessions that are genotyped and should be predicted
• add columns for sex information in the result table and filter by appropriate combinations
• file download of results
• connection to cross tool from results table (maybe with check boxes for each desired combination?)
• error message for traits in selection index that are not in the dataset
• two step process. Only show Analyses as a list to choose from as the data input

For Bugs:

Environment

Steps to Reproduce