added thermo groups for heteropolycyclics containing one or two oxygens

[yunsiechung]

4 new thermo groups are added for heteropolycyclics containing one or two oxygens. These thermo corrections are calculated using the CBS-QB3 method.

s3_5_6_ane_hetero_O and s3_5_6_ane_hetero_OO are added as children of s3_5_6_ane.
s4_6_6_ane_hetero_O and s4_6_6_ane_hetero_OO are added as children of s4_6_6_ane.

[mention-bot]

@yunsiechung, thanks for your PR! By analyzing the history of the files in this pull request, we identified @KEHANG, @connie and @nyee to be potential reviewers.

[yunsiechung]

I realized that I forgot to apply bond energy corrections to one of the fused heterocyclic groups, so I'm recalculating the corrections.

[yunsiechung]

I fixed the values by applying the bond energy corrections to my fused heterocyclic groups calculated using the CBS-QB3 job.

[yunsiechung]

@KEHANG Do you mind reviewing this and see what's causing the check failure? I cannot see the job log for the test. It passed the RMG-database test when I ran it on my laptop.

[KEHANG]

@yunsiechung sometimes Travis has random build failure, you can restart the build on the upper right corner (that's what I did) usually will pass in a second trial if that's the case.