[fix] Allow OSX package to be dragable to Application

Once the dmg is mounted, a window pop-up with the LidarView icon and the Application folder. The normal Mac user behavior is to drag the LidarView app to the Application folder. This was not possible because the symlink generation was disabled. It had been disabled during the PV5.9 upgrade. It was because some files where copy to the wrong location, aka LV_INSTALL_RESSOUCE_DIR. So when cmake wanted to create the symlink, the folder already exist which caused the error.

Each application is responsible to bundle correctly their calibration files, this is why the last lines were removed