Move enums from elm_win_common.h to elm_win.eo in order to make them
more accessible for bindings.
Moved the include for elm_win.eo.legacy.h to the top of elm_win_legacy.h
to allow the use of the generated types in the function declarations.
while this is technically an abi break, it should actually have no
real impact. it will have warnings - sure, but running existing code
will simply not see the extra parammeters on the stack and not use
them so it'll continue to work. if we removed paramms, we'd be in
pain. (same applies to params passed in registers).
this fixes T2031
this is a giant hack to provide widget parenting in e. do not use this function, do not use this type, do not even read the related documentation.
@feature