nvme-cli/fabrics: Add ctrl-loss-tmo param to connect cmd

nvme-cli/fabrics: Add ctrl-loss-tmo param to connect cmd

Added 'ctrl-loss-tmo' to 'connect' command so users can specify the
controller lost timeout period.

usage examples:
nvme connect --ctrl-loss-tmo=0 --transport=rdma --traddr=10.0.1.1 --nqn=test-nvme
nvme connect -l 0 -t rdma -a 10.0.1.1 -n test_nvme

Signed-off-by: Nitzan Carmi <nitzanc@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Keith Busch <keith.busch@intel.com>