[PACE-44] Setup processing platform integration tests

[trietsch]

Problem description In order to test transforms and platform specific implementations, we should set up some form of integration tests.

Proposed solution TBD

_PACE-44

[astronomous]

As suggested, because we need to test the data integrity, I think approaching this trough eg Soda or Great Expectations (or any other good data quality tool) is worthwhile to explore.

[astronomous]

whoopsie