Improving PopupMenu for touch screens

[jpo]

And here is the companion post that explains what was changed:

PopupMenu with a rewritten mouse handling code

Hi, I’m a heavy user of juce PopupMenu, and have a complicated relation with it. I love it because it is super convenient, and I hate it because it has a lot of annoying issues that are sometimes platform dependent, that depend on the input (touch and / or mouse), that may depend on the fact that submenus are used, or if the menu window appears over the mouse pointer or not, or if the popupmenu has a parent component or not. After spending way too much time (weeks…) trying to fix the issues I …