I need some sort of signal "dereferencer" that can be easily used to translate references
to stuff via a normalized interface.

For example, if RDL defines:
    my_field->next = my_other_field
Then in Python (or a template) I could do:
    x = my_field.get_property('next')
    y = dereferencer.get(x)
and trust that I'll get a value/identifier/whatever that accurately represents
the value being referenced

Values:
    If X is a field reference:
        ... that implements storage, return its DFF value reference
        ... no storage, but has a hw input, grab from the hwif input
        ... no storage, and no hw input, return its constant reset value?
    If X is a property reference... do whats right...
        my_field->anded === (&path.to.my_field)
    if X is a static value, return the literal


See `Hierarchy and Indexing` on details on how to build path references to stuff