Get Bundle Item node should automatically get data type

The get bundle item node is pulling from data that already has a data type associated with it. The default behavior should be for it to automatically use that data type when exporting its information. To do this, an additional data type should be added to the list of data types named "auto". That way the user can choose to let the data type pass through, OR they can manually select a data type if they wish to recast the original data into a new type.

Note: I know that this is probably not a trivial request because the way the node system works it appears to have hard-coded outputs - I.e. the node outputs themselves change based on the user's selection of data type. But I think, in general, this should be adjusted to allow for more flexibility in the networks.

2nd Note: I know I used the term "data type" too many times in this text. :)