Regenerate pool_xml_catalog.xml when reproducing a pipeline test
This should resolve #6 (closed)
Previously the pool_xml_catalog.xml
used in a local reproduction of a pipeline test was the file downloaded from the pipeline test which gave pfns
that could not be accessed from a local machine. Now this file is instead used to obtain the lfn
for the file used in the pipeline test which is then used to generate a new pool_xml_catalog.xml
that is valid for a local test.