Missing "Image" from visual styles

[OscarValerock]

Hi @yelper !

The "image" visual style is missing from the schema.

But this can be used in a theme without problems.

[yelper]

I've prototyped something for the schema that would ship with the May release. Here's the schema generated, please let me know if you see an issue with it!

"image": {
    "type": "object",
    "additionalProperties": false,
    "properties": {
        "*": {
            "type": "object",
            "allOf": [
                {
                    "$ref": "#/definitions/commonCards"
                },
                {
                    "properties": {
                        "*": {
                            "type": "array",
                            "items": {
                                "type": "object",
                                "properties": {
                                    "imageUrl": {
                                        "type": "string"
                                    },
                                    "imageScalingType": {
                                        "type": "string",
                                        "oneOf": [
                                            {
                                                "const": "Normal",
                                                "title": "Normal"
                                            },
                                            {
                                                "const": "Fit",
                                                "title": "Fit"
                                            },
                                            {
                                                "const": "Fill",
                                                "title": "Fill"
                                            }
                                        ],
                                        "title": "Scaling"
                                    }
                                }
                            }
                        },
                        "general": {
                            "type": "array",
                            "items": {
                                "type": "object",
                                "properties": {
                                    "imageUrl": {
                                        "type": "string"
                                    }
                                }
                            }
                        },
                        "imageScaling": {
                            "type": "array",
                            "items": {
                                "type": "object",
                                "properties": {
                                    "imageScalingType": {
                                        "type": "string",
                                        "oneOf": [
                                            {
                                                "const": "Normal",
                                                "title": "Normal"
                                            },
                                            {
                                                "const": "Fit",
                                                "title": "Fit"
                                            },
                                            {
                                                "const": "Fill",
                                                "title": "Fill"
                                            }
                                        ],
                                        "title": "Scaling"
                                    }
                                }
                            },
                            "title": "Scaling"
                        }
                    }
                }
            ]
        }
    }
},

[OscarValerock]

Seems to be working great, looking forward to the next release. Thanks!