from SimMedTK to iMSTK.

Modify the license notice in each file.
Add LICENSE file.

from SimMedTK to iMSTK.

Modify the license notice in each file.
Add LICENSE file.

- Also replace GL/glew by vtk_glew in Core/RenderDetail
- Remove empty first line in those

Many other cmake improvements.

Fix GLEW/GLU dependency mess.

Set build configuration variables and pass down to to superbuild
external projects.

1. Removing GLEW external project. Glew is now
built with vtk, in order to use it just include
the vtk use file and add the vtkglew library
to the target link directive.

2. BUILD_SHARED_LIBS is now forced to be OFF for
Windows MSVC builds.

Build external shared libs in order to avoid linking issues in windows.

Also renmamed many unseen sm* class names.