mapsubplots: Add "subplotFun" and "axesProps" arguments
mapsubplots: Add "subplotFun" and "axesProps" arguments

- Add "subplotFun" argument, so it's possible to use, e.g., "subtightplot"
  for creating more tightly-spaced subplots.

- Add "axesProps" argument, for more advances customizations of all created
  axes objects.

onnodb/MATLAB-FunUtils