I'm not aware of shopware internals, but if it is implemented via one of supported ORM frameworks, you can import it as usual project.
Welcome to the Inventic support forum. This support forum covers both Skipper and its older version, ORM Designer issues.
Feel free to ask us anything about Skipper or ORM Designer. If you find any problem or glitch, or if you have an idea for an enhancement, please let us know.