eipp: enable xz-compressed scenario logging

eipp: enable xz-compressed scenario logging

In 385d9f2f23057bc5808b5e013e77ba16d1c94da4 I implemented the storage of
scenario files based on enabling this by default for EIPP, but I
implemented it first optionally for EDSP to have it independent.

The reasons mentioned in the earlier commit (debugging and bugreports)
obviously apply here, especially as EIPP solutions aren't user approved,
nearly impossible to verify before starting the execution and at the
time of error the scenario has changed already, so that reproducing the
issue becomes hard(er).