Added test for add and get cmap functions
Added test for add and get cmap functions

pllim/ginga,ejeschke/ginga,stscieisenhamer/ginga,rupak0577/ginga,stscieisenhamer/ginga,Cadair/ginga,naojsoft/ginga,ejeschke/ginga,rupak0577/ginga,naojsoft/ginga,stscieisenhamer/ginga,ejeschke/ginga,pllim/ginga,pllim/ginga,Cadair/ginga,Cadair/ginga,naojsoft/ginga,rupak0577/ginga