Added new GraphData methods including one to return data with units using the quantities package
Added new GraphData methods including one to return data with units using the quantities package

openworm/ChannelWorm,VahidGh/ChannelWorm,openworm/ChannelWorm,cheelee/ChannelWorm,cheelee/ChannelWorm,gsarma/ChannelWorm,gsarma/ChannelWorm,VahidGh/ChannelWorm,cheelee/ChannelWorm,openworm/ChannelWorm,VahidGh/ChannelWorm,cheelee/ChannelWorm,VahidGh/ChannelWorm,openworm/ChannelWorm,gsarma/ChannelWorm,gsarma/ChannelWorm