TOOLS-509: `sdcadm experimental install-platform` added to history.
TOOLS-509: `sdcadm experimental assign-platform` added to history.
TOOLS-509: Added `sdcadm experimental add-new-agent-svcs` to history
TOOLS-509: `sdcadm experimental update-other` added to history
TOOLS-509: Added `sdcadm experimental update-gz-tools` to history
Added `sdcadm experimental update-agents` to history
TOOLS-463: Added `sdcadm experimental` and sub-commands to docs