Timeline : add dedicated slider that has more freedom over how to draw position
Timeline : add dedicated slider that has more freedom over how to draw position

andrewkaufman/gaffer,appleseedhq/gaffer,andrewkaufman/gaffer,andrewkaufman/gaffer,GafferHQ/gaffer,boberfly/gaffer,GafferHQ/gaffer,hradec/gaffer,hradec/gaffer,boberfly/gaffer,appleseedhq/gaffer,andrewkaufman/gaffer,lucienfostier/gaffer,ImageEngine/gaffer,johnhaddon/gaffer,boberfly/gaffer,GafferHQ/gaffer,appleseedhq/gaffer,appleseedhq/gaffer,ImageEngine/gaffer,ImageEngine/gaffer,GafferHQ/gaffer,lucienfostier/gaffer,hradec/gaffer,GafferHQ/gaffer,hradec/gaffer,johnhaddon/gaffer,andrewkaufman/gaffer,hradec/gaffer,johnhaddon/gaffer,johnhaddon/gaffer,lucienfostier/gaffer,lucienfostier/gaffer,johnhaddon/gaffer,ImageEngine/gaffer,boberfly/gaffer