qt: Add GpgCardJob following the job pattern
* lang/qt/src/Makefile.am: Add new files. * lang/qt/src/job.cpp (GpgCardJob): Add impl stuff. * lang/qt/src/protocol.h (gpgCardJob): Get one. * lang/qt/src/qgpgmebackend.cpp, lang/qt/src/qgpgmebackend.h: Add helpers to get the job. * lang/qt/src/qgpgmegpgcardjob.cpp, lang/qt/src/gpgcardjob.h, lang/qt/src/qgpgmegpgcardjob.h: New.
This is annoyingly complex to add a simple new job.
In the future we should implement something like this
without the threadedjobmixin stuff. But the idea was
to follow the usual job pattern.
- GnuPG-Bug-Id: T4794