add a crispr_group REST GET method
add extra information for crispr group REST get request, right and left crispr ids and crispr primers
add as_hash method to CrisprPrimer resultset, needs to work out which type of crispr it belongs to so it can work out species and then set the correct assembly
add as_hash method to the CrisprPrimersLoci resultset
fix report page tests