Debugger: Python dumper support for QNX targets on arm/x86.

gdbbridge.py + dumper.py:
    added detection on QNX target and ARM arch
    added detection of Qt 3 support
    fixed detection of Qt version

qttypes.py:
    fixes of different memory alignment

stdtypes.py:
    support of different libstdc++ internal structures on QNX

Change-Id: I808ee048c66c73c38bf5a8403e9cf881e767442e
Reviewed-by: hjk <hjk121@nokiamail.com>