This reverts commit a6a51b6a.

The commit broke the build, sorry for the push.

No need to muck about with iterators, adding a loop, and 2 function
calls to test for empty: it's a std::vector under the hood, so use
.empty(), and inline it.

...as some may use code exported from msword lib.  The newly introduced sw::Filters
class can still be improved, bundling what is currently exported through various channels
from fltini.cxx.  Also, the code is still not thread safe.

basicrt goes into the static app library, so DLL import/export
decorations meaningless.

This reverts commit c9f9b672.

oox/source/drawingml/customshapepresets.cxx is a 4MB source that make gcc
explode both on MacOs and on Gentoo....

the compiler churn on it for 20 minutes or consumming huge amount of memory... and finnaly blow-up with memory error.

This reverts commit e36f591d.

This reverts commit 04688482.

A regression from 3.3.  Calc wouldn't display page background color
or image in print preview.  This was a side effect of the removal
of the high-contract mode.

In 3.3, Calc purpusefully wouldn't show background color/image when
the app is in high contrast mode.  Now that the mode has been removed,
the code acted as though the high contract mode is always on, which
caused the background color/image to always be hidden in print preview.

this does not work yet, it still does not load the vba code correctly
and therefore can't find the vba library

test is still disabled by default,
it works but does nothing useful yet

event handler registered for a ListenerType were triggered when *any* of the events
associated with that ListenerType were fired.

  - added new presets generated from definition included in ISO standard
  - added missing variables (cd3, hd10, ...)
  - added ifelse shortcut ?:
  - removed GetAdjAngle because it would make problems with constant vs. equation
    defined angles, move conversion to the functions using them
  - implemented arcTo path segment (command)
  - removed GetTextShapeType as we don't use vml's presets for drawingml
    anymore
  - use token number for preset type instead of string, as we don't
    convert to old vml's preset types anymore
  - enhanced custom shape properties dump code

  - added new ARCANGLETO command needed for PPTX custom shapes import
  - added added placeholder for unimplemented QUADRATICCURVETO command,
    skip it's data at least so that we don't break other things for now
  - cache equations results to optimize custom shapes calculation
    PPTX import creates such equations that made system busy for long
    time, this removes that issue
  - added lot of debug output to help with debugging of complex imported
    custom shapes

 - defined by start and swing angles + ellipse width and height

The fix adds a new entry in the sheet popup menu with Protect Sheet command
followinf the discussion in UX list, as indicated in the bug.