Accession lists

genesys-pgr/genesys-server!677 adds API support for user-managed lists of accessions.

The first change to the UI will be the ability to save/browse/load any of the lists the user created.

We now have "My List (X)" menu item, but we probably need to change that to "Selection (X)" and add a menu item (for logged in users) to the logged-in user menu that says "My lists". This loads and displays all lists the user has saved in Genesys.

When a user loads a saved list, the "Selection" list items (title and description) are replaced.

Basically: there is a currently selected AccessionList with: title, description and uuid[] that can be "Save as...", "Save"-d, "Reload"-ed and "Delete"-d. If I load a list, then "Selection" page should indicate if the list is different from what I have saved on the server.

I think the best thing to do is to change the "Clear list" into a dropdown called "List" that has "Save", "Delete, "Clear", "Save as.."... options.