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) |