move atom typing to the specific resonance algorithms
move atom typing to the specific resonance algorithms

this is safer than letting the delegating method
"generateResonanceIsomers" do it.

nickvandewiele/RMG-Py,nyee/RMG-Py,chatelak/RMG-Py,pierrelb/RMG-Py,nyee/RMG-Py,chatelak/RMG-Py,pierrelb/RMG-Py,nickvandewiele/RMG-Py