WIP: add multiStageTest

Change-Id: I9b3a5efe958332de8871786d40588bcc99fb04ee
WIP: a minor bug in commandline of multiStg ex

Change-Id: If51fa0a14b51e1ee74534acccc62ff9ca64d3aa5
WIP: baseline of mltiStg test is related to mltiRes2

Change-Id: Ifcf21780d9f9956f0b13b118184be1a874647f11
WIP: add object name to classes

Change-Id: I7657423147e09ff3f548a46eb311184199dce4f6
WIP: add reg update of stage1

Change-Id: Ic080743c62e2c5bf6055862984ea68ccc8db5065
WIP: some edits to mltiStg1

Change-Id: I1e2321beda5f07209f6ee4793be439b2250cc232
WIP: some edits to observer

Change-Id: I93bc968a00df56a2b9e9ef27a47a986541d62e2d
WIP: add test for multistage1

Change-Id: I9b1a11d44782cc91139eb43929a64467ce3f1185