Pass option to official InChI API to ignore stereochemistry.
Pass option to official InChI API to ignore stereochemistry.

Took me a while to track down the option and how to pass it around,
but I think this finally closes #138 and silences all those
   [17:48:35] WARNING: Omitted undefined stereo
warnings that have been plaguing us!

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