import_ghidra - support original-name attribute on more elements #81
Description
The df-structures XML files are being updated to store original-name attributes on a far wider variety of tags: enum types, bitfield types, vmethods, and invididual structure fields. The importer needs to be updated accordingly.
Special care will likely be necessary for BitArrays and enum-indexed array types, since we seem to be directly using the index-enum attribute in the structure's name instead of retrieving its actual type name.