Add package metadata to specify compatible Python versions
Add package metadata to specify compatible Python versions

Kitware/girder,RafaelPalomar/girder,data-exp-lab/girder,Xarthisius/girder,manthey/girder,manthey/girder,jbeezley/girder,data-exp-lab/girder,RafaelPalomar/girder,manthey/girder,RafaelPalomar/girder,jbeezley/girder,kotfic/girder,Xarthisius/girder,data-exp-lab/girder,girder/girder,RafaelPalomar/girder,girder/girder,girder/girder,Kitware/girder,jbeezley/girder,Xarthisius/girder,kotfic/girder,Kitware/girder,kotfic/girder,Xarthisius/girder,data-exp-lab/girder,kotfic/girder,kotfic/girder,Kitware/girder,manthey/girder,RafaelPalomar/girder,Xarthisius/girder,data-exp-lab/girder,girder/girder,jbeezley/girder