Clean up UnoControls/source/controls/ further

...and create ProgressBar directly in ProgressMonitor/StatusIndicator, instead
of going via service manager.

Change-Id: I798e0c415c113cfc65d70ed17cb16aafded41a6d
Remove odd service names (that duplicate type names)

Looks like no code instantiated these via those odd service names (except for
ProgressMonitor/StatusIndicator instantiating ProgressBar via odd
"com.sun.star.awt.XProgressBar" service name until that got cleaned up in the
previous commit).

Also looks like no code instantiates them via their implementation names either
(in which case ProgressBar/ProgressMonitor/StatusIndicator would be dead code),
but maybe there is code that dynamically constructs those implemenation names
and calls creeateInstance on them?  So best leave the implementations in for
now...

Change-Id: I20b92345e343b1f776387f63d9b02a5b0a47fe21