Remove the use of mavlink_parse_char which distorts channel stats

To have both order from the GCS and drone messages in logs
So that it's possible to analyze the complete exchange between QGC and the
drone.

- Add a signal emitted by writeBytes of each LinkInterface
- Connect this signal to MAVLinkProtocol::logSentBytes in LinkManager
- MAVLinkProtocol::logSentBytes will parse and log messages sent from
  QGC

Global: change null or 0 to nullptr

Fix for android builds (attempting!)

Fix for android builds

qobject_cast is times faster dynamic_cast for objects that
inherit QObject. also, use auto keyword to not duplicate
class names.

qobject_cast is times faster dynamic_cast for objects that
inherit QObject. also, use auto keyword to not duplicate
class names.

qobject_cast is times faster dynamic_cast for objects that
inherit QObject. also, use auto keyword to not duplicate
class names.

qobject_cast is times faster dynamic_cast for objects that
inherit QObject. also, use auto keyword to not duplicate
class names.

qobject_cast is times faster dynamic_cast for objects that
inherit QObject. also, use auto keyword to not duplicate
class names.

qobject_cast is times faster dynamic_cast for objects that
inherit QObject. also, use auto keyword to not duplicate
class names.

qobject_cast is times faster dynamic_cast for objects that
inherit QObject. also, use auto keyword to not duplicate
class names.

qobject_cast is times faster dynamic_cast for objects that
inherit QObject. also, use auto keyword to not duplicate
class names.

qobject_cast is times faster dynamic_cast for objects that
inherit QObject. also, use auto keyword to not duplicate
class names.

qobject_cast is times faster dynamic_cast for objects that
inherit QObject. also, use auto keyword to not duplicate
class names.

qobject_cast is times faster dynamic_cast for objects that
inherit QObject. also, use auto keyword to not duplicate
class names.

qobject_cast is times faster dynamic_cast for objects that
inherit QObject. also, use auto keyword to not duplicate
class names.

qobject_cast is times faster dynamic_cast for objects that
inherit QObject. also, use auto keyword to not duplicate
class names.

qobject_cast is times faster dynamic_cast for objects that
inherit QObject. also, use auto keyword to not duplicate
class names.

qobject_cast is times faster dynamic_cast for objects that
inherit QObject. also, use auto keyword to not duplicate
class names.

qobject_cast is times faster then dynamic_cast for objects
that inherit QObject. also, use auto keyword to not repeat
the class name

qobject_cast is times faster then dynamic_cast for objects that
inherit QObject. Also, use auto keyword to not duplicate the
name of the Class

Use QHostAddress(string) instead

Return a empty QString instead

This helps with other IDE's that handle CMake better than QMake

This feels like a hack - they are already inserted somehwere else
in the plugin folder.

Create a new Target FactControls, and add a custom target for the
Qml in the folder.

This creates a fake target that adds the Qml sources to the CMakeProject
this let's IDE's that read CMake files to display the files on the
project viewer

This creates a fake target that adds the Qml sources to the CMakeProject
this let's IDE's that read CMake files to display the files on the
project viewer