message: Fix compilation issue of test when RINGMESH_TEST_GRAPHICS is off
diff: #include <ringmesh/ringmesh_tests_config.h>
  +#include <geogram/basic/command_line.h>
  +#include <geogram/basic/logger.h>
  +
  #include <ringmesh/basic/common.h>
  #ifdef RINGMESH_TEST_GRAPHICS
  -#include <geogram/basic/command_line.h>
  -#include <geogram/basic/logger.h>
  #include <geogram/basic/process.h>
  #include <ringmesh/visualization/gfx_application.h>
  @@ -161,9 +162,10 @@ int main()
  }
  #else
  -#include <geogram/basic/logger.h>
  int main() {
  + using namespace RINGMesh ;
  +
  default_configure() ;
  Logger::out("RINGMeshView")
  << "To compile RINGMesh viewer you need to configure "
  