adds the missing GetCanvas() method... although shouldn't GetCanvas() return csRef?  Also I'm not 100% sure that there is actually an iGraphics2D in iImage, but it seemed like the most likely place... anyway it doesn't seem to break anything
adds the missing GetCanvas() method... although shouldn't
GetCanvas() return csRef?  Also I'm not 100% sure that there
is actually an iGraphics2D in iImage, but it seemed like
the most likely place... anyway it doesn't seem to break anything


git-svn-id: 28d9401aa571d5108e51b194aae6f24ca5964c06@11854 8cc4aa7f-3514-0410-904f-f2cc9021211c

crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS