qt, cpp: Support larger size-hint on 32 bit builds
* NEWS: Mention this. * lang/cpp/src/data.h, lang/cpp/src/data.cpp (Data::setSizeHint): New. * lang/qt/src/qgpgmedecryptjob.cpp, lang/qt/src/qgpgmedecryptverifyarchivejob.cpp, lang/qt/src/qgpgmedecryptverifyjob.cpp, lang/qt/src/qgpgmeencryptjob.cpp, lang/qt/src/qgpgmesignencryptjob.cpp, lang/qt/src/qgpgmesignjob.cpp, lang/qt/src/qgpgmeverifydetachedjob.cpp, lang/qt/src/qgpgmeverifyopaquejob.cpp: Set size for input IODevice.
This fixes the case where the old detection of the size of QIOdevice
using seek would overflow and instead explicitly uses QIODevice::size
to check for the size and pass it through as an uint64.
- GnuPG-Bug-Id: T6534