Release sage 2.1.0

[jaclark5]

Contains both opt and torsion drives for Sage 2.1.0

New Submission Checklist

• [X] Created a new folder in the submissions directory containing the dataset
• [X] Added README.md describing the dataset see here for examples
• [X] All files used to produce the dataset are included with a description
• [X] Dataset follows the QCSubmit schema defined for Datasets, OptimizationDatasets and TorsionDriveDatasets
• [X] Dataset filename matches pattern dataset*.json; may feature a compression extension, such as .bz2
• [X] A PDF depicting the molecules is attached, in the case of torsiondrives this should include the highlighting of the central bond, this can be done automatically using qcsubmit.
• [X] QCSubmit validation passed
• [X] Made a new dataset entry in the mapping table in repository README.md
• [X] Ready to submit!