Adding simple meta reader that reads .vt*, .ply and .stl
Support for .vt* (except vtk), .ply and .stl. Rendering is managed by the vtkDataSetMapper, so not working with multiblock on this side for now
Edited by Mathieu Westphal (Kitware)
Support for .vt* (except vtk), .ply and .stl. Rendering is managed by the vtkDataSetMapper, so not working with multiblock on this side for now