We need to add support for multiple processes and lane elements import.
Currently the import works under assumption that there is only one process in diagram (no pools and lanes).
Notes for implementation:
need to add a way to maintain information about pools/lanes and corresponding flow nodes,
DI information (graphic representation) differs when there's no pools/lanes and when those elements are present. Basically, in first case there is no "collaboration" element and the single "process" element is connected to BPMNPlane element. In other case, the "collaboration" element is connected to BPMNPlane element and every pool (represented as "participant" element) is connected to BPMNShape element.
We need to add support for multiple processes and lane elements import. Currently the import works under assumption that there is only one process in diagram (no pools and lanes).
Notes for implementation: