Trisurf() improvements. * __go_draw_axes__.m: Revert changeset 595ee644fa6f. Properly identify RGB cdata [1x3] for patches. * trisurf.m: Correct bugs in converting between facevertexcdata and cdata. This allows caxis auto to function correctly, and properly fixes bug 35144. Add demos to explicitly test facecolor = "flat" and "interp".

#include "mex.h"

void
mexFunction (int nlhs, mxArray *plhs[], int nrhs, 
             const mxArray *prhs[])
{
  const char *nm;
  nm = mexFunctionName ();
  mexPrintf ("You called function: %s\n", nm);
  if (strcmp (nm, "myfunc") == 0)
    mexPrintf ("This is the principal function\n", nm);
  return; 
}