Introduce ResolvablePropertyPath #3220
Description
The current property path resolution is fixed in its behaviour providing litte to no flexibility for consuming modules.
Sometimes it is desirable to be able to walk a path partially up to the point that was resolvable or be able to ask the object if the path exits and can be resolved without having to deal with the current PropertyReferenceException.
The path factory would also be able to cache ResolvablePropertyPath instances even if they cannot be resolved as a whole, which is currently only possible for fully resolvable paths.