Added HostConfig as a model class to read the Json configuration from te...

I have added a model class HostConfig where I read following configuration 
 <hostConfig>
                                <![CDATA[
                                     { "Binds":null,
                                     "LxcConf":null,
                                     "PortBindings": {
                                         "2181/tcp":
                                                      [  {
                                                            "HostIp": "192.168.59.103",
                                                            "HostPort": "2181"
                                                        } ]

                                       },
                                     "PublishAllPorts": false,
                                     "Privileged": false,
                                     "Dns": null,
                                     "VolumesFrom":[],
                                     "ContainerIDFile": null,
                                     "DnsSearch": null,
                                     "Links" : null,
                                     "NetworkMode": null
                                     }
                                     ]]>
                            </hostConfig>
and pass it to client when I start the container. This code I copied it from InspectContainerResponse.

I am using this library in a Maven-Plug-in https://github.com/IrfanAnsari/docker-maven-plugin where original of this is at https://github.com/bibryam/docker-maven-plugin.