Support examples in properties

[leolplex]

Hello @StefH ,

This PR contains the capability to support examples when it is defined in the properties:

"schemas": {
        "Order": {
          "type": "object",
          "properties": {
            "id": {
              "type": "integer",
              "format": "int64",
              "example": 10
            },
            "petId": {
              "type": "integer",
              "format": "int64",
              "example": 198772
            },
            "quantity": {
              "type": "integer",
              "format": "int32",
              "example": 7
            },
            "shipDate": {
              "type": "string",
              "format": "date-time"
            },
            "status": {
              "type": "string",
              "description": "Order Status",
              "example": "approved",
              "enum": [
                "placed",
                "approved",
                "delivered"
              ]
            },
            "complete": {
              "type": "boolean"
            }
          },
          "xml": {
            "name": "order"
          }
        },
}

The response looks like this:

 "Response": {
            "StatusCode": 200,
            "BodyAsJson": {
                "id": 10,
                "petId": 198772,
                "quantity": 7,
                "shipDate": "2022-08-09T23:23:26.490-05:00",
                "status": "approved",
                "complete": true
            },
            "Headers": {
                "Content-Type": "application/json"
            }
        }

It could be find in the examples that I uploaded before.

Thank you.

[StefH]

Can you merge/rebase master into this branch ?