Merge topic 'fix-composite-mapper-opaque-blocks'

4a376511 Fix invalid calls to glGetError before context is current.
5d4edb2c Improve OpenGL debug logging
12d82bb5 Do not overwrite loguru global stderr verbosity
ab7468ee Adapt vtkActor to correctly detect translucent geometry on mapper
9805f7b5 Fix utility clang-format script attribute

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: buildbot <buildbot@kitware.com>
Tested-by: Spiros Tsalikis <spiros.tsalikis@kitware.com>
Merge-request: !11710