Modifier utils: set of modifiers, modifier filter

[ljacqu]

Classes, methods, fields etc. have modifiers, which are a bit cumbersome to check sometimes. It would be cool to introduce enums(?) with all the modifiers and to allow some filtering mechanism, similar as back in the day for https://github.com/ljacqu/DataSourceColumns/tree/master/src/main/java/ch/jalu/datasourcecolumns/predicate

Off the top of my head, something like:

ModifierFilter<Field> filter = FieldModifier.FINAL.and(FieldModifier.STATIC);

filter.matches(field)

(Plus .negate(), .or(...) ... )

Challenge is that modifiers are different for each Member. Class has modifiers but does not implement Member.