Make "graphic error" api legacy

Decorated vtkRenderWindow "graphic error" methods with legacy.
These were superceded by vtkOpenGL{Check/Clear}ErrorMacro's.

Change-Id: I2b3fbbbb1125b7611d4553e6ea1640b3f74121f6
Merge topic 'legacy-graphic-error-api' into master

c544585c Make "graphic error" api legacy