* Move pkhex.drawing calls out of form constructors
designer doesn't like it; if Main can't be designed then there's some
call that it can't process for whatever reason
* Add netcore3 targeting
Closes#2198 by adding a netcore3 build option
Closes#2391 by retaining designer functionality and net46 builds
set the usercontrol to inherit from whatever it is placed on; fixes the
clipping issue noted in the forums
Thanks english09, wejhvabewjty, & zkrxpdlf3!
pkm editor, sav editor, menus, and a manager to glue the storage slots
together
decouples the pkm/sav editors from a static savefile reference.
improves dragdrop/click view/set/delete indication, hides unavailable
contextmenuitems, and fixes a few incorrect references. Box Subviewer
slots now have all the indication/events that the main save editor slots
have.
pls report behavior bugs 👍
