Add SOFA license agreement as license/SOFA.rst
Add SOFA license agreement as license/SOFA.rst

larrybradley/astropy,astropy/astropy,aleksandr-bakanov/astropy,pllim/astropy,joergdietrich/astropy,funbaker/astropy,StuartLittlefair/astropy,tbabej/astropy,tbabej/astropy,saimn/astropy,aleksandr-bakanov/astropy,joergdietrich/astropy,tbabej/astropy,bsipocz/astropy,StuartLittlefair/astropy,funbaker/astropy,funbaker/astropy,StuartLittlefair/astropy,stargaser/astropy,StuartLittlefair/astropy,MSeifert04/astropy,joergdietrich/astropy,AustereCuriosity/astropy,astropy/astropy,dhomeier/astropy,dhomeier/astropy,tbabej/astropy,stargaser/astropy,kelle/astropy,bsipocz/astropy,lpsinger/astropy,DougBurke/astropy,funbaker/astropy,joergdietrich/astropy,StuartLittlefair/astropy,pllim/astropy,dhomeier/astropy,mhvk/astropy,larrybradley/astropy,bsipocz/astropy,stargaser/astropy,lpsinger/astropy,lpsinger/astropy,AustereCuriosity/astropy,pllim/astropy,aleksandr-bakanov/astropy,joergdietrich/astropy,astropy/astropy,MSeifert04/astropy,AustereCuriosity/astropy,AustereCuriosity/astropy,tbabej/astropy,aleksandr-bakanov/astropy,pllim/astropy,mhvk/astropy,dhomeier/astropy,saimn/astropy,mhvk/astropy,kelle/astropy,DougBurke/astropy,dhomeier/astropy,larrybradley/astropy,saimn/astropy,larrybradley/astropy,mhvk/astropy,MSeifert04/astropy,stargaser/astropy,MSeifert04/astropy,lpsinger/astropy,astropy/astropy,kelle/astropy,lpsinger/astropy,mhvk/astropy,kelle/astropy,DougBurke/astropy,astropy/astropy,saimn/astropy,bsipocz/astropy,saimn/astropy,AustereCuriosity/astropy,larrybradley/astropy,pllim/astropy,kelle/astropy,DougBurke/astropy