Add checkboxes to invert meaning of Edit > Refine > Accept Proteins/Peptides
A user requested that we support removing proteins or peptides with the same type of UI that we have for keeping then, i.e. Edit > Refine > Accept Proteins/Peptides. We could just add a checkbox to the forms we have to invert their meaning. Slightly confusing that you use the same Accept menu items to get there, but at least it would be possible without adding a lot of new UI.