message: Fix unit test, add imageTypeSupported
diff: "imageFields": [
  {
  "name": "softButtonImage",
  + "imageTypeSupported": [
  + "GRAPHIC_PNG"
  + ],
  "imageResolution": {
  "resolutionWidth": 35,
  "resolutionHeight": 35
  },
  {
  "name": "choiceImage",
  + "imageTypeSupported": [
  + "GRAPHIC_PNG"
  + ],
  "imageResolution": {
  "resolutionWidth": 35,
  "resolutionHeight": 35
  },
  {
  "name": "choiceSecondaryImage",
  + "imageTypeSupported": [
  + "GRAPHIC_PNG"
  + ],
  "imageResolution": {
  "resolutionWidth": 35,
  "resolutionHeight": 35
  },
  {
  "name": "menuIcon",
  + "imageTypeSupported": [
  + "GRAPHIC_PNG"
  + ],
  "imageResolution": {
  "resolutionWidth": 35,
  "resolutionHeight": 35
  },
  {
  "name": "cmdIcon",
  + "imageTypeSupported": [
  + "GRAPHIC_PNG"
  + ],
  "imageResolution": {
  "resolutionWidth": 35,
  "resolutionHeight": 35
  },
  {
  "name": "appIcon",
  + "imageTypeSupported": [
  + "GRAPHIC_PNG"
  + ],
  "imageResolution": {
  "resolutionWidth": 35,
  "resolutionHeight": 35
  },
  {
  "name": "graphic",
  + "imageTypeSupported": [
  + "GRAPHIC_PNG"
  + ],
  "imageResolution": {
  "resolutionWidth": 35,
  "resolutionHeight": 35
  },
  {
  "name": "secondaryGraphic",
  + "imageTypeSupported": [
  + "GRAPHIC_PNG"
  + ],
  "imageResolution": {
  "resolutionWidth": 35,
  "resolutionHeight": 35
  