Must be marked WRAP_EXCLUDE too for Tcl smoke tests

These classes are experimental, and are not necessary to be wrapped.
The Tcl tests may need some modification for OpenGL2 backends though
where not all interface classes have overrides.

Change-Id: If62aace5f1a41930112a589004e5cffbdbad5468
Reduce the number of renders (avoid time outs)

This test is taking too long with OpenGL backends, and failing with
time outs. Reduced the number of renders, and simply use vtkNew for
the timer that was added.

Change-Id: I43d1a969346f6f9d4032032b34cd62437c81def0
Move device adapter initialization to the OpenGL module

The dashboards mark a test as failing when an override is not found,
and the message is not relevant when using the OpenGL2 backend that
does not implement the painter API. Moved the initialization to the
OpenGL 1 variant of vtkOpenGLRenderWindow, and set NULL in the
parent class.

Change-Id: Ibc5bad78c9d9d286b93437ff1400dc163d1940e4
Merge topic 'fix-tests' into master

5328c487 Move device adapter initialization to the OpenGL module
2a672626 Reduce the number of renders (avoid time outs)
70e078b8 Must be marked WRAP_EXCLUDE too for Tcl smoke tests