CAD CONTROLS: Dream CAD Control feature update all highlighted entities on the purge graph

1, fixed the group inside the entity, the deleted entity also returned error 2, fixed agent entity can not change the color problem. 3, fixed catch block insertion point, sometimes run to very far position problem. The 4.MxDrawChange class adds the Toblockreference function 5. Add Mxdraw::D rawtojpgbase64,mx_drawtojpgbase64 function to save the contents of the drawing as a JPG image of the Base64 character encoding 6. Add Mx_clearallhighlight function to clear all highlighted entities on the graph 7. Modify the Zoom entity command to not enter a scale after dynamic input is turned on

CAD CONTROLS: Dream CAD Control feature update all highlighted entities on the purge graph