Create a manhole server service.
| Parameters | options | A mapping describing the configuration of the desired service.  Recognized 
key/value pairs are: 
   "telnetPort": strports description of the address on which
                 to listen for telnet connections.  If None,
                 no telnet service will be started.
   "sshPort": strports description of the address on which to
              listen for ssh connections.  If None, no ssh
              service will be started.
   "namespace": dictionary containing desired initial locals
                for manhole connections.  If None, an empty
                dictionary will be used.
   "passwd": Name of a passwd(5)-format username/password file.
   "sshKeyDir": The folder that the SSH server key will be kept in.
   "sshKeyName": The filename of the key.
   "sshKeySize": The size of the key, in bits. Default is 4096.
(type:dict) | 
| Returns | A manhole service. (type: twisted.application.service.IService) |