add normal regular expression transform for node attribute

[bybai]

for https://github.ibm.com/xcat2/task_management/issues/260

1. Use python to realize the Easy Regular expressions of perl function transRegexAttrs in Table.pm

UT： 1.

[root@byrh07 allien]# lsdef -t group bybai
Object name: bybai
    members=c910f04x12v04
    nichostnamesuffixes.ens4=-ens4
    nicips.ens4=|\D+\d+\D+\d+\D+(\d)+\D+(\d+)|30.0.($1).($2/1000+9)|
    nicnetworks.ens4=30_0_0_0-255_255_0_0
    nictypes.ens4=Ethernet
[root@byrh07 allien]# lsdef c910f04x12v04
Object name: c910f04x12v04
    groups=bybai
    nichostnamesuffixes.ens4=-ens4
    nicips.ens4=30.0.2.9
    nicnetworks.ens4=30_0_0_0-255_255_0_0
    nictypes.ens4=Ethernet
    postbootscripts=otherpkgs
    postscripts=syslog,remoteshell,syncfiles
[root@byrh07 allien]# curl -X GET "http://10.4.41.7:5000/api/v2/system/nodes/c910f04x12v04/_detail" -H  "accept: application/json"
{
    "meta": {
        "name": "c910f04x12v04"
    },
    "spec": {
        "obj_type": "node",
        "engines": {
            "netboot_engine": {
                "engine_info": {
                    "postbootscripts": "otherpkgs,",
                    "postscripts": "syslog,remoteshell,syncfiles,"
                }
            }
        },
        "obj_info": {
            "groups": "bybai"
        },
        "role": "compute",
        "device_type": "server",
        "network_info": {
            "nics": {
                "ens4": {
                    "ips": "30.0.2.9",
                    "hostnamesuffixes": [
                        "-ens4"
                    ],
                    "networks": [
                        "30_0_0_0-255_255_0_0"
                    ],
                    "type": [
                        "Ethernet"
                    ]
                }
            }
        }
    }
}

2.

[root@byrh07 allien]# lsdef -t group bybai -i nicips.ens4
Object name: bybai
    nicips.ens4=|\D+\d+\D+\d+\D+(\d)+\D+(\d+)|30.0.($2+$1).($2+9)|
[root@byrh07 allien]# lsdef c910f04x12v04 -i nicips.ens4
Object name: c910f04x12v04
    nicips.ens4=30.0.6.13

[root@byrh07 allien]# curl -X GET "http://10.4.41.7:5000/api/v2/system/nodes/c910f04x12v04/_detail" -H  "accept: application/json"
{
    "meta": {
        "name": "c910f04x12v04"
    },
    "spec": {
        "obj_type": "node",
        "engines": {
            "netboot_engine": {
                "engine_info": {
                    "postbootscripts": "otherpkgs,",
                    "postscripts": "syslog,remoteshell,syncfiles,"
                }
            }
        },
        "obj_info": {
            "groups": "bybai"
        },
        "role": "compute",
        "device_type": "server",
        "network_info": {
            "nics": {
                "ens4": {
                    "ips": "30.0.6.13",
                    "hostnamesuffixes": [
                        "-ens4"
                    ],
                    "networks": [
                        "30_0_0_0-255_255_0_0"
                    ],
                    "type": [
                        "Ethernet"
                    ]
                }
            }
        }
    }
}

3.

]# lsdef -t group bybai -i nicips.ens4
Object name: bybai
    nicips.ens4=|\D+\d+\D+\d+\D+(\d)+\D+(\d+)|30.0.($2+($1*3)).($2+9)|
[root@byrh07 allien]# lsdef c910f04x12v04 -i nicips.ens4
Object name: c910f04x12v04
    nicips.ens4=30.0.10.13
[root@byrh07 allien]# curl -X GET "http://10.4.41.7:5000/api/v2/system/nodes/c910f04x12v04/_detail" -H  "accept: application/json"
{
    "meta": {
        "name": "c910f04x12v04"
    },
    "spec": {
        "obj_type": "node",
        "engines": {
            "netboot_engine": {
                "engine_info": {
                    "postbootscripts": "otherpkgs,",
                    "postscripts": "syslog,remoteshell,syncfiles,"
                }
            }
        },
        "obj_info": {
            "groups": "bybai"
        },
        "role": "compute",
        "device_type": "server",
        "network_info": {
            "nics": {
                "ens4": {
                    "ips": "30.0.10.13",
                    "hostnamesuffixes": [
                        "-ens4"
                    ],
                    "networks": [
                        "30_0_0_0-255_255_0_0"
                    ],
                    "type": [
                        "Ethernet"
                    ]
                }
            }
        }
    }
}

4. if using wrong format regular expression

   [root@byrh07 ~]# lsdef -t group bybai -i nicips.ens4
   Object name: bybai
   nicips.ens4=|\D+\d+\D+\d+\D+(\d)+\D+(\d+)|30.0.($2+($1*3).($2+9)|
   [root@byrh07 ~]# lsdef c910f04x12v04 -i nicips.ens4
   Object name: c910f04x12v04
   nicips.ens4=30.0.($2+($1*3).($2+9)
   [root@byrh07 ~]# curl -X GET "http://10.4.41.7:5000/api/v2/system/nodes/c910f04x12v04/_detail" -H  "accept: application/json"
   {
   "meta": {
       "name": "c910f04x12v04"
   },
   "spec": {
       "obj_type": "node",
       "engines": {
           "netboot_engine": {
               "engine_info": {
                   "postbootscripts": "otherpkgs,",
                   "postscripts": "syslog,remoteshell,syncfiles,"
               }
           }
       },
       "obj_info": {
           "groups": "bybai"
       },
       "role": "compute",
       "device_type": "server",
       "network_info": {
           "nics": {
               "ens4": {
                   "ips": "30.0.(04+(2*3).(04+9)",
                   "hostnamesuffixes": [
                       "-ens4"
                   ],
                   "networks": [
                       "30_0_0_0-255_255_0_0"
                   ],
                   "type": [
                       "Ethernet"
                   ]
               }
           }
       }
   }
   }