- Move test_catalog.py, test_sgprops.py and catalog/testData/ to
python3-flightgear/flightgear/meta/tests/.
- Copy catalog/fgaddon-catalog/ to the same place (it is needed by
test_catalog.py).
- Adapt test_catalog.py and test_sgprops.py accordingly.
- Remove the executable bits from test_catalog.py and test_sgprops.py:
this is because test_catalog.py can't be run directly anymore; well,
it can but 3 tests would fail in this setup. No time to investigate
why (sorry), but this commit adds a README.txt in
python3-flightgear/flightgear/meta/tests/README.txt that explains how
to run the tests in a way that works (basically, run
'python3 -m unittest' from the python3-flightgear directory).
For a bit more context, see
<https://sourceforge.net/p/flightgear/mailman/message/37042247/>.
