The menu item is enabled from the grid's display status, so it can be clicked for
episodes the queue will reject - episodes absent from the last scan are the usual
case. Pre-filtering the children threw that reason away and left the queue with an
empty request it could only answer in general terms.
Co-authored-by: rmcrackan <rmcrackan@gmail.com>
All processables are now created with an instance of Configuration, and they use that instance's settings.
Added Configuration.CreateEphemeralCopy() to clone Configuration without persistence.
Use existing BaseUtil.LoadImage delegate, obviating need for derrived classes to load images
Since GridEntry types are no longer generic, interfaces are unnecessary and deleted.
