Add items to existing item list from list page

[Nicklas Nordborg]

On list pages there is currently a function to create a new item list from a selection or filter. It would be nice to also have similar functionality for adding items to an existing item list.

The current procedure for adding items to a list requires going to "View -> Item lists", finding the correct item list, switching to the "Members" tab and then using the "Add" button to essentially bring up the same list of items that was already available beforehand.

[Nicklas Nordborg]

In 7801:

References #2209: Add items to existing item list from list page

Implemented a popup dialog for selecting an item list and which items to add from the current list. As usual there are three options: selected items, current page, or all items.

A button and supporting functionality for using the new feature has been added to the Biosource list page.

[Nicklas Nordborg]

In 7802:

References #2209: Add items to existing item list from list page

Fixed on the sample list page.

[Nicklas Nordborg]

In 7803:

References #2209: Add items to existing item list from list page

Changed the popup dialog to use the same mechanism for selecting an item that is used in most other places in BASE. Eg. a list that is populated with the most recently used items and a "Select" buttons that opens the list view that allows for searching and filtering. The original implementation with a static list that was populated with all matching item lists can be hard to use if the number of items to select from is large.

[Nicklas Nordborg]

In 7804:

References #2209: Add items to existing item list from list page

Fixed on the list pages for extracts, physical, derived and raw bioassays.