When reading Chemkin files, always add in certain bath gases.
When reading Chemkin files, always add in certain bath gases.

This is required in order to be able to parse Chemkin files generated by
RMG-Java (but not RMG-Py). I'd rather not have to hardcode bath gases like
this, but for now it's okay.

enochd/RMG-Py,nyee/RMG-Py,faribas/RMG-Py,comocheng/RMG-Py,nyee/RMG-Py,KEHANG/RMG-Py,nickvandewiele/RMG-Py,nickvandewiele/RMG-Py,comocheng/RMG-Py,faribas/RMG-Py,pierrelb/RMG-Py,KEHANG/RMG-Py,pierrelb/RMG-Py,chatelak/RMG-Py,enochd/RMG-Py,chatelak/RMG-Py