Viewable Logic: Fix falsey check for empty Operation Def value viewLabels showing their value instead of blank

[CWolfs]

Viewable Logic: Fix falsey check for empty Operation Def value viewLabels showing their value instead of blank

Basically, if you had:

    {
      "label": "Force Non-FP Conference Room",
      "types": ["int"],
      "tooltip": "If this is true, when a conversation is triggered it will force the non-FP version of the conference room",
      "values": [
        {
          "viewlabel": "",
          "text": "False",
          "value": 0
        },
        {
          "viewlabel": "always in the non-FP conference room ",
          "text": "True",
          "value": 1
        }
      ],
      "defaultValue": 0
    },

The "viewlabel": "", section should mean nothing should appear for this section but instead it shows 'False'.

[CWolfs]

In develop. It now shows blank correctly.