CTimeOSD is inherited from CComponentsForm/Item.
Therefore, it is usual to keep the functional layout.
Overwritable virtual members should be used with same
functionality. kill() is similar with paintBackground() known from
CFrameBuffer, hide(bool) do restore saved background and expects a
parameter.
TODO: It works, but class layout of CTimeOSD is currently not conform
with Components, because the functionalities are partially undermined
and must be reworked.
For Example: timescale and clock object not used as sub objects
in a parent form object.
CProgressbar moved into components sub directory and adapt includes.
Progressbar objects are now usable as cc-item
TODO:
-some color and size corrections
-found some dub codes for sig and snr-bars, needs rework
