Update for OS-Server-start-stop samples

Copied and renamed samples for accuracy:
	server_start_req.json
	server_start_req.xml
	server_stop_req.json
	server_stop_req.xml
Modified:   src/wadls/compute-api/src/ext/os-server-start-stop.wadl
Fixes: bug 1087059

Change-Id: I9615bbdac0089e248e1acb3a581e3b791f5dce23
Merge "Update for OS-Server-start-stop samples"