Add GetFormObject Helper Method

[scottolsonjr]

It would be helpful for writing unit test and some use cases to retrieve a specific FormObject to work with. For example, to interact with rows in a specific form. To accomplish this we could implement a GetFormObject method to retrieve a FormObject by ID.

FormObject formObject = optionObject.GetFormObject("123");

Another way this could look is to use this method to quickly retrieve the CurrentRow of a FormObject.

RowObject rowObject = optionObject.GetFormObject("123").CurrentRow;

The intent of this method is to reduce the need for selecting FormObjects using the methods below.

string formId = "123";
for (FormObject formObject in optionObject.Forms)
{
    if (formObject.FormId == formId) {
        // logic for this form
    }
}

FormObject formObject = optionObject.Form[2];
// logic for this form