Windows cmake qt update (and more)

• RobWorkStudio/cmake/RobWorkStudioSetup.cmake
  • Simplified find package.
• RobWorkStudio/cmake/Modules/Find_QT_DIR.cmake
  • Originally I only added the Qt5 part, but since the file on develop also looks at 6 I added that too. The only thing I wonder is that the line above: set(QT${FIND_VERSION_MAJOR}_PATH "$ENV{Qt${FIND_VERSION_MAJOR}_DIR}"): Since it sets a QT5_PATH or QT6_PATH, then the set(QT_MISSING False) will not be called on line 60, because it checks for QT_PATH only, this seems like a bug?
• RobWork/cmake/RobWorkConfig.cmake.in
  • Added missing boost dependency that is found in the main cmake.
• RobWorkStudio/CMakeLists.txt
  • Added so it can handle if both a debug and release dll is added in the 'PYTHON_DLL' variable.
• RobWork/cmake/RobWorkSetup.cmake
  • Updated so BOOST_ROOT and Boost_DIR are set from environmental variable if present and not already manually specified by the user.
  • Updated how BOOST_ROOT and Boost_DIR are found automatically on windows to tell the user what goes wrong instead of weird cmake syntax errors.
  • Removed the sdurw from ROBWORK_LIBRARIES_INTERNAL as it is a library interface and hence no files are build to which external applications need to link.
  • Removed EIGEN_DONT_ALIGN_STATICALLY because, if this is needed, it needs to be set by the person compiling the library because it otherwise can create misalignments when linking to rw.