[macro] [Haxe 5] Make it possible to get the untyped version (haxe.macro.Field) of super classes and for Context.getType

[NeeEoo]

Currently you can only get the typed version (haxe.macro.ClassField) which has some context info missing, especially around

?arg = val
arg = val
?arg:Null
?arg:Type
?arg:Null = val
arg:Null = val
arg:Type = val

especially when making a wrapper around a class that keeps the args the same.
And theres also a possibility of halting compilation due to the macro trying to type stuff in a incorrect order.