slcli image detail missing transaction data

[allmightyspiff]

slcli image detail doesn't show active_transactions for an image, because the transactions themselves show up on the images' children.

So lets make the following changes:

1. Datacenters should show a sub-table of

DC	size	transaction
dal10	20G	-
dal13	20G	doing something

2. Change disk_space to total size, and sum up all the child sizes.

Overall the purpose of this issue is to allow users to see when things are happening to templates, and get an idea of if their template is ready to be used or not.

[allmightyspiff]

Change also needs to be made to https://github.ibm.com/Bluemix/bluemix-cli/issues/3594

[allmightyspiff]

Some notes:

$ slcli -v --format=table image detail 8730058
Calling: SoftLayer_Virtual_Guest_Block_Device_Template_Group::getObject(id=8730058, mask='id,accountId,name,globalIdentifier,parentId,publicFlag,flexImageFlag,imageType,children[id,blockDevicesDiskSpaceTotal,datacenter],note,createDate,status,transaction', filter='None', args=(), limit=None, offset=None))
:....................:......................................:
:               name : value                                :
:....................:......................................:
:                 id : 8730058                              :
:  global_identifier : c811d763-f732-4a56-90b4-3fe0ad3f4891 :
:               name : cgallo-test-transaction              :
:             status : Active                               :
: active_transaction : -                                    :
:            account : 307608                               :
:         visibility : Private                              :
:               type : System                               :
:               flex : False                                :
:               note : None                                 :
:            created : 2021-04-06T07:37:56-06:00            :
:         disk_space : 2.34G                                :
:        datacenters : dal09,dal13                          :
:....................:......................................:

(py38)
allmi@SPF-WIN10 MINGW64 ~/Source/softlayer-python (issues1474)
$ slcli -v --format=json call-api SoftLayer_Virtual_Guest_Block_Device_Template_Group getObject --id=8730058 --mask="mask[children[transaction]]"
Calling: SoftLayer_Virtual_Guest_Block_Device_Template_Group::getObject(id=8730058, mask='mask[children[transaction]]', filter='{}', args=(), limit=None, offset=None))
{
    "accountId": 307608,
    "createDate": "2021-04-06T07:37:56-06:00",
    "id": 8730058,
    "name": "cgallo-test-transaction",
    "parentId": null,
    "publicFlag": 0,
    "statusId": 1,
    "transactionId": null,
    "userRecordId": 167758,
    "children": [
        {
            "accountId": 307608,
            "createDate": "2021-04-06T07:37:57-06:00",
            "id": 8730060,
            "name": "cgallo-test-transaction",
            "parentId": 8730058,
            "publicFlag": 0,
            "statusId": 1,
            "transaction": {
                "createDate": "2021-04-26T12:37:55-06:00",
                "elapsedSeconds": 20,
                "guestId": null,
                "hardwareId": null,
                "id": 241651606,
                "modifyDate": "2021-04-26T12:38:15-06:00",
                "statusChangeDate": "2021-04-26T12:37:59-06:00",
                "transactionStatus": {
                    "averageDuration": "5.39",
                    "friendlyName": "Check Cloud Disk Template Transfer",
                    "name": "CHECK_CLOUD_DISK_TEMPLATE_TRANSFER"
                }
            },
            "transactionId": 241651606,
            "userRecordId": 167758
        },
        {
            "accountId": 307608,
            "createDate": "2021-04-26T12:37:55-06:00",
            "id": 8980332,
            "name": "cgallo-test-transaction",
            "parentId": 8730058,
            "publicFlag": 0,
            "statusId": 1,
            "transaction": {
                "createDate": "2021-04-26T12:37:55-06:00",
                "elapsedSeconds": 20,
                "guestId": null,
                "hardwareId": null,
                "id": 241651606,
                "modifyDate": "2021-04-26T12:38:15-06:00",
                "statusChangeDate": "2021-04-26T12:37:59-06:00",
                "transactionStatus": {
                    "averageDuration": "5.39",
                    "friendlyName": "Check Cloud Disk Template Transfer",
                    "name": "CHECK_CLOUD_DISK_TEMPLATE_TRANSFER"
                }
            },
            "transactionId": 241651606,
            "userRecordId": 167758
        }
    ],
    "globalIdentifier": "c811d763-f732-4a56-90b4-3fe0ad3f4891"
}