[Azoth Tracolor] Sanity checks in AppendRow().
[Interfaces] Added AN events for tune, activity & mood changes.
[XSD] Code style fixes.
[XSD] Handle Enum columns with empty values list.

Just disable the field in editing mode and abort addition in add mode.
[Azoth] Emit status change events for non-chat entries as well.
[Azoth Tracolor] Changed first column type to Enum.
[Azoth Tracolor] Rebuild addabe events.
[Azoth Tracolor] Support adding events.
[Azoth Tracolor] Add TypeIMStatusChange indicator by default.

Disabled, though.
[XSD] Just keep the data editor widgets in a list for dataview.