Delete dw_option member from HVisor / HvConnect struct.
Add HVisor auto connect flag to KeyVal DB.
Add HVisor's use ssh password flag to KeyVal DB.
Move Max error count param to KeyVal DB.
Move HVisor's SSH auth.type to KeyVal DB.
Move HVisor's SSH setting(hostname/port/user/password/pubkey/seckey) to KeyVal DB.
Define HVisor's SSH config keys.
Move HVisor's sudo enable / use password flag to KeyVal.