Add apply curation to gui

[chrishalcrow]

Allows the user to apply the current curation to the analyzer, creating a new analyzer in memory.

To do:

• add to panel
• save original analyzer without extensions somewhere
• keep track of the chain of curations (must add new_unit_ids)
• ensure properties are properly kept track of
• ensure colours are properly kept track of
• be able to save multiple curations
• allow user to undo apply(??)

[samuelgarcia]

Clearly I totaly I lost the control here.
My only wish now is that this will be an optional (and maybe hidden) feature that will be false by default.

[chrishalcrow]

Haha, I don't think so Sam! The core logic has changed much - most of the gross code is related to storing the chain of curations and being able to save them!