Updated SphereUI
Updated SphereUI

- Used Metadata.registerNode instead of registerNodeDescription
- Added presets via metadata
- Changed EnumPlugValueWidget to PresetsPlugValueWidget

appleseedhq/gaffer,hradec/gaffer,boberfly/gaffer,johnhaddon/gaffer,chippey/gaffer,ImageEngine/gaffer,lucienfostier/gaffer,andrewkaufman/gaffer,ImageEngine/gaffer,goddardl/gaffer,GafferHQ/gaffer,ivanimanishi/gaffer,ivanimanishi/gaffer,GafferHQ/gaffer,boberfly/gaffer,goddardl/gaffer,andrewkaufman/gaffer,johnhaddon/gaffer,appleseedhq/gaffer,boberfly/gaffer,boberfly/gaffer,GafferHQ/gaffer,lucienfostier/gaffer,lucienfostier/gaffer,andrewkaufman/gaffer,johnhaddon/gaffer,hradec/gaffer,chippey/gaffer,appleseedhq/gaffer,hradec/gaffer,ivanimanishi/gaffer,hradec/gaffer,goddardl/gaffer,GafferHQ/gaffer,johnhaddon/gaffer,johnhaddon/gaffer,lucienfostier/gaffer,ImageEngine/gaffer,goddardl/gaffer,ImageEngine/gaffer,GafferHQ/gaffer,hradec/gaffer,andrewkaufman/gaffer,chippey/gaffer,appleseedhq/gaffer,andrewkaufman/gaffer,ivanimanishi/gaffer,chippey/gaffer