Windows: Use WinAPI CommandLineToArgvW() to create argv from command line.

Split the Windows CE/Desktop Windows code paths in winmain.
Use CommandLineToArgvW() to obtain argv[] for Desktop Windows.

[ChangeLog][QtCore][Windows] Command line parsing on Windows
now uses the WinAPI function CommandLineToArgvW() to exactly
match the quoting of the command interpreter.

Task-number: QTBUG-35432
Task-number: QTBUG-23687
Change-Id: I6743e73649d953497642f7717d3731a83ffda2a2
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Force qdbusxml2cpp to use QStringLiteral rather than QLatin1String

Change-Id: I6db4c80a14466b51d73c2704e8fc2e2e8a8a6b02
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>