Gatherer: --testdatadays can now be also negative generating historic data
Gatherer: --testdatadays can now be also negative generating historic data

Meaning dummy data will be from range [now() - testdatadays, now()]. That makes it easier for example to test TimescaleDB storage

cybertec-postgresql/pgwatch2,cybertec-postgresql/pgwatch2,cybertec-postgresql/pgwatch2,cybertec-postgresql/pgwatch2