This reverts commit 443e4ed5.

* 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)

* 'master' of gitlab.com:Simox/simox:
  LimitVectorLength
  change interpolated solution of limitless joints to actual defined limits instead of 0-2PI check limits in any case after creation of random config
  throw exception if nodes are exceeded instead of returning a null ptr
  Windows fixes