* Use qt parent for deleting completer
Manually deleting causes some UAF due to it being installed as event
filter.
Qt seems to destroy things in correct order. Sanitizer doesn't report
completer as being leaked.
* Fix sanitizer problems in HexWidget
* Initialize size properties to somewhat sane values to avoid
unrealized variable use when calculating them first time.
* Change AbstractData interface. Old one returned pointer to unknown
sized block of data which was difficult to use correctly. Adjust bound
checking to avoid out of bounds access when comparing with oldData and
scrolling.
Sometimes it is not necessary to include the whole Cutter.h file
Hence, it's been splitted so you can include only what you require
E.g. #include "core/CutterCommon.h" to have access to the common types
* Small refactor for the widgets of Cutter
This refactor include the following :
* Creation of a new class
Creation of a new class, named CutterWidget, that inherits from QDockWidget and
is used to represent all of the widgets of the main window.
The goal of this class is to regroup all the behaviour shared by the widgets of
Cutter.
For example : in the constructor, instructions corresponding of those
present in the macro **ADD_DOCK** (in MainWindow.cpp) are executed.
This was made because I think that the macro **ADD_DOCK** which is used
to construct the widgets does not take advantage of the object structure.
* Ensure that every widget has a parent
Some widgets were created using the constructor QDockWidget, but using
**nullptr** (default) as argument, thus they haven't got any parent.
The constructor of a CutterWidget takes as argument the MainWindow and an
action (optional) and calls the constructor of QDockWidget with the main
window as argument. This is valid under the assumption that it is mandatory
for every widget to have the main window as a parent.
* Constructors removal
The constructors of some widgets are not used anywhere and does not seem not
fullfill any current usecase. They were removed.
* Renaming CutterWidget to CutterDockWidget
