[sagd] Let tests only run half a day to save time

lecture/mm/heavyoil/sagd/CMakeLists.txt

 # headers for installation and headercheck
 
-add_dumux_test(sagd sagd sagd.cc "${CMAKE_CURRENT_BINARY_DIR}/sagd")
+add_dumux_test(sagd sagd sagd.cc "${CMAKE_CURRENT_BINARY_DIR}/sagd" "-TimeManager.TEnd" "43200" "-TimeManager.MaxTimeStepSize" "21600")
 
 install(FILES
         sagdproblem.hh

lecture/mm/heavyoil/sagdCyclic/CMakeLists.txt

 # headers for installation and headercheck
 
-add_dumux_test(sagdCyclic sagdCyclic sagdCyclic.cc "${CMAKE_CURRENT_BINARY_DIR}/sagdCyclic")
+add_dumux_test(sagdCyclic sagdCyclic sagdCyclic.cc "${CMAKE_CURRENT_BINARY_DIR}/sagdCyclic" "-TimeManager.TEnd" "43200" "-TimeManager.MaxTimeStepSize" "21600")
 
 install(FILES
         sagdCyclicproblem.hh

lecture/mm/heavyoil/sagdCyclicHyst/CMakeLists.txt

 # headers for installation and headercheck
 
-add_dumux_test(sagdCyclicHyst sagdCyclicHyst sagdCyclicHyst.cc "${CMAKE_CURRENT_BINARY_DIR}/sagdCyclicHyst")
+add_dumux_test(sagdCyclicHyst sagdCyclicHyst sagdCyclicHyst.cc "${CMAKE_CURRENT_BINARY_DIR}/sagdCyclicHyst" "-TimeManager.TEnd" "43200" "-TimeManager.MaxTimeStepSize" "21600")
 
 install(FILES
         sagdCyclicHystproblem.hh