add ScopedVclPtr
add ScopedVclPtr

which acts like boost::scoped_ptr to disposeAndClear a vcl::Window when
it leaves scope

Change-Id: I077522734585c19d6bbc3cbf81f1fa45e61ecd02

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core