fdo#78384: Fix for corruption if file contains symbols.

* In case of symbol, symbol character get imported first and then font of symbols.
* So we are storing symbol character and when we parse symbol font then create UNO object for text.

Reviewed-on: https://gerrit.libreoffice.org/9281
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
Tested-by: Miklos Vajna <vmiklos@collabora.co.uk>
(cherry picked from commit f51640c5f40d5132b396a9fb6589420383df1610)
Signed-off-by: Andras Timar <andras.timar@collabora.com>

Conflicts:
	sw/qa/extras/ooxmlexport/ooxmlexport.cxx
	writerfilter/source/dmapper/DomainMapper_Impl.cxx

Change-Id: If5b79521c6a59aec02b165e8120dafdd472cdaeb
writerfilter: DomainMapper_Impl::SetSymbolData() should take an int

One wonders how did this work so far.

Change-Id: I6aee6a2f7e15c1c4931ca5d65b6ad39d025ff9ed
(cherry picked from commit 671eb12dee290607ed66f3b325f28e7bd4695cba)
Signed-off-by: Andras Timar <andras.timar@collabora.com>