Appender Text Sequencer
class AppenderTextSequencer(var msBetweenCharacters: Long, listener: (characters: List<Char>) -> Unit) : TextSequencer
Provides a TextSequencer that is time based and dispatches lists of Char to be appended. At each step of the sequence a list of Char will be dispatched to the listener. The delay between characters must be specified, in milliseconds, with msBetweenCharacters. A listener must be provided.