Binary editor: Support ctrl+(page)up/down
Binary editor: Support ctrl+(page)up/down

Only scroll without changing the cursor position when pressing ctrl.

Task-number: QTCREATORBUG-11386
Change-Id: I850da6f42696d6b5d9db488562aa56903c4ce970
Reviewed-by: David Schulz <f07954e8cc0c222cd136162588d217f330598215@theqtcompany.com>

Distrotech/qtcreator,xianian/qt-creator,martyone/sailfish-qtcreator,martyone/sailfish-qtcreator,xianian/qt-creator,danimo/qt-creator,martyone/sailfish-qtcreator,Distrotech/qtcreator,danimo/qt-creator,martyone/sailfish-qtcreator,xianian/qt-creator,danimo/qt-creator,danimo/qt-creator,xianian/qt-creator,martyone/sailfish-qtcreator,Distrotech/qtcreator,Distrotech/qtcreator,martyone/sailfish-qtcreator,xianian/qt-creator,martyone/sailfish-qtcreator,martyone/sailfish-qtcreator,xianian/qt-creator,martyone/sailfish-qtcreator,danimo/qt-creator,Distrotech/qtcreator,danimo/qt-creator,Distrotech/qtcreator,xianian/qt-creator,danimo/qt-creator,xianian/qt-creator,xianian/qt-creator,danimo/qt-creator,danimo/qt-creator,Distrotech/qtcreator