New license request: SOFA [SPDX-Online-Tools]

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1. License Name: SOFA Software License
2. Short identifier: SOFA
3. License Author or steward: IAU SOFA Center
4. Comments: The copyright of the SOFA Software belongs to the Standards Of Fundamental Astronomy Board of the International Astronomical Union.
5. License Request Url: http://tools.spdx.org/app/license_requests/420
6. URL(s): http://www.iausofa.org/tandc.html
7. OSI Status: Unknown
8. Example Projects: http://www.iausofa.org/