Refactor Potprocessor to be less coupled with parser.
Write unit tests for postprocessor.
Add index keys as properties and mark them as required.
Write unit tests for postprocessor.
Add destructured enumeration keys as properties.
Write unit tests for postprocessor.
Process relation attributes ad save them as properties.
Write unit tests for postprocessor.
Create tests for links.
Write unit tests for postprocessor.
Simplify names.
Write unit tests for postprocessor.
Test properties processing.
Write unit tests for postprocessor.
Test meta definitions.
Write unit tests for postprocessor.
Test type resolving.