In the process, remove the ImplControlProperty struct,
 since it was duplicating information already stored in the
 key of the map.

ASCII-only handling is much more efficient, and some functionality
like comparison has optimized variants for ASCII

gcc defines INLINE to __inline, which leads to 'multiple definition of ...'
error on use of liblpsolve.dll.a (e.g., in sccomp).

Also use host ar and ranlib.

some of our menu icons are not RGBA, but our fade-out code only
handled images with an alpha channel, so we need to extend it
for bitmaps with alpha channel icons

Delay the call to FlyFrameGraphic() till we can write the result to the
stream without buffering in memory; 1.048GB -> 330.1MB memory usage with
the bugdoc.

It's a wrapper around OStringBuffer to handle export of graphics more
efficiently.

Replace String by OUString