Update ONTOP-LICENSE.txt
Update ONTOP-LICENSE.txt

updated license to the dual license
clarkparsia/ontop,eschwert/ontop,ConstantB/ontop-spatial,srapisarda/ontop,ghxiao/ontop-spatial,ontop/ontop,ontop/ontop,eschwert/ontop,ConstantB/ontop-spatial,clarkparsia/ontop,ConstantB/ontop-spatial,srapisarda/ontop,ontop/ontop,ConstantB/ontop-spatial,eschwert/ontop,srapisarda/ontop,srapisarda/ontop,ghxiao/ontop-spatial,ontop/ontop,eschwert/ontop,ghxiao/ontop-spatial,ontop/ontop,ghxiao/ontop-spatial,clarkparsia/ontop