Can now export of old database when using thermo models other than ThermoData.
Can now export of old database when using thermo models other than ThermoData.

When constructing thermo libraries, there is no longer any reason to manually
convert from MultiNASA or Wilhoit to ThermoData, which would be discarding of
information. RMG-Py will use the thermo models as provided, and can now
convert to ThermoData automatically as it exports the old database.

You don't get any uncertainty information, however.

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