AIM-6: Added 'disease' in input for Model Update

Added disease as an input parameter for updating the models.

{
"disease": "string",
"image": null,
"model": "string",
"modelVersion": 0,
"x1": 0,
"x2": 0,
"x3": 0,
"x4": 0,
"y1": 0,
"y2": 0,
"y3": 0,
"y4": 0
}