Missing null check in `sdkifyField`

[khoait]

The sdkifyField is not checking for null value before parsing to correct attribute type.

https://github.com/scottdurow/dataverse-ify/blob/0c8321d10b69556b2941aa2f330611ff67b020b6/src/dataverse-ify/sdkify/sdkify.ts#L211-L234

For example, an attribute is of type datetime and entityRecord[attributeLogicalName] is null (line 228), parsing null value to a Date object will returns an invalid Date object.

I think we can check for undefined or null before parsing like this:

if (entityRecord[attributeLogicalName] === undefined || entityRecord[attributeLogicalName] === null){
  attributeValue = entityRecord[attributeLogicalName]
} else {
 switch (attributeType) {
    case AttributeTypes.EntityReference:
      ({ attributeValue, attributeLogicalName } = getEntityReference(entityRecord, field));
      break;
    case AttributeTypes.Money:
      attributeValue = entityRecord[attributeLogicalName] as number;
      break;
    case AttributeTypes.MultiSelectOptionSetValue:
      attributeValue = getMultiSelectOptionSet(entityRecord, attributeLogicalName);
      break;
    case AttributeTypes.OptionSetValue:
      attributeValue = entityRecord[attributeLogicalName];
      break;
    case AttributeTypes.EntityCollection:
      ({ attributeValue, isActivityPartiesField } = await getEntityCollection(field, entityMetadata, entityRecord));
      break;
    case AttributeTypes.DateTime:
      attributeValue = new Date(Date.parse(entityRecord[attributeLogicalName] as string));
      break;
    default:
      // Default - set primitive type value
      attributeValue = entityRecord[attributeLogicalName];
      break;
  }
}

entityRecord[attributeLogicalName] = attributeValue;