Skip Julia imports in regression.py

This is to avoid the line
WARNING:root:Julia import failed, RMS reactors not available. Exception: No module named 'juliacall' Stacktrace:
showing up in the regression results.
But it might speed things up a little too.

Author: rwest

rmgpy/tools/regression.py

@@ -37,6 +37,9 @@
 import os.path
 import sys
 
+import rmgpy
+rmgpy.DISABLE_JULIA = True  # disable Julia to save time and warnings
+
 from rmgpy.molecule import Molecule
 from rmgpy.quantity import Quantity
 from rmgpy.species import Species