(#100) Invalid parameter when sending InteractiveMessageDateTime

[sotskopa]

When sending InteractiveTemplateMessageRequest, I get Invalid parameter, Code 100 from the Graph API. I believe this is because InteractiveMessageDateTime has a bunch of default parameters that are not ignored when serializing into the POST payload, e.g. DayOfWeek, Year, Month, and so on. The Cloud API expects only fallback_value in a date_time, so adding NullValueHandling or removing these properties is preferred.

[gabrieldwight]

I will push an update with the fix for NullValueHandling of InteractiveMessageDateTime.