Control which hold and displays a text. The CEikLabel class is able to display one or more lines of text and it provides functions
to set the text and font, which is used when displaying the label control. This control is usually used as a component in a compound control,
an example is when this class is used as a component in the compound class CEikLabeledButton.
Inteface used by CEikLabel to get timer call backs. The interface is used by the CEikLabel class to get a periodic callback functionallity.
Provides methods to start and stop the perodic callback.