debuglevels: simplify the build system, by complicating the OOo code ;)
debuglevels: simplify the build system, by complicating the OOo code ;)

Introduce DBGSV_(TRACE/WARNING/ERROR)_OUT, which controls the output channel for tools-level
traces/warnings/assertions, when no dbgsv.ini file is found (this is the increased OOo complexity).

Use this in installationtest.mk, instead of creating a dedicated dbgsv.ini file.

Yet to come: add support for DBGSV_ERROR_OUT to the GNU make build system. Which is the reason why
DBGSV_ERROR_OUT was introduced: Currently, running a GNU make based test pops up assertions as message
boxes. Before the change here, we would have needed to add dbgsv.ini support to the GNU make build system,
which sounds not like a funny a reasonable thing to do. So, instead, we will simply set DBGSV_ERROR_OUT,
which is much simpler and less error prone.
JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core