beremiz

add the possibility to enable or disable wxTaskbarIcon for Beremiz_service
Launch beremiz without taskbarIcon by default (incompatible with svgui plugin)
<?xml version="1.0" encoding="UTF-8"?>
<BeremizRoot URI_location="LOCAL://">
<TargetType>
<Win32 CFLAGS="" Linker="g++" LDFLAGS=""/>
</TargetType>
</BeremizRoot>