* Added option for running one test and then another test
  Example: "test 1 10 then 2 5" runs test 1 10 times and then test 2 5 times
* Implemented test 2 for FWD/BWD sequences with different stance widths and all inclinations (up/down/left/right)
* Implemented test 3 for FWD sequence going downhill with slope respose enabled
* Implemented test 4 for BWD sequence with different pelvis heights and all inclinations (up/down/left/right)

Signed-off-by: Darpa Tech 3 <darpa3@SMILe03.(none)>