* remove some pointer derefs
* manually inline some code
* compile pqp into VirtualRobot (library inlining)
* auto format some code
* remove unused datamembers (they were calculated, but we never used them)

# Conflicts:
#	CMakeLists.txt

(cherry picked from commit 7cd04def)

* all camke module files are now in simox/CMakeModules
* FindBullet also uses Bullet_DIR to detect bullet
* Simox checks whether Bullet uses single or double precision
* removed the option SimDynamics_USE_BULLET_DOUBLE_PRECISION
* Set default for Simox_BUILD_SimDynamics to true (a warning will be printed if bullet is not found and SimDynmics will not be build)

Switching to NDEBUG preprocessor define
Tidy up cmake files
Remove some unnecessary checks

Renamed SceneViewer to SimoxSceneViewer
Version 2.3.9


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changed name of qhull project to simox-qhull to avoid issues when installing simox together with a different qhull verson

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