OP-1107 Still not working but all gui elements are in place.
Updated pfd.svg and related PFD qml files

Still WIP, implemented:
* horizont rendering
* altitude scale
* speed scale
* vsi scale
* basic compass, without extra marks/points
* fixed horizont center mark
Reload PFD qml widget on the middle mouse click

Makes qml files modifications and result check much faster
GCS UAVO generator: generate properties for composed fields

Expose field elements as FieldName_Element properties.
it's more convenient if only certain element is used
and much easier to use from the qml side
PFD view: added Warning and incomplete Info views

Only GPS info is implemented
Updated pfd.svg file

With some text only items conveted to path,
so they can be used to find coordinates on the scene
Correctly find the position of GPS fix element

using coordinates of "gps-mode-text" element
Display the speed waypoint element

if not 0
Display the altitude waypoint
PFD: Display altitude vector bar
OP-1109: port libs/utils - swgImageProvider
OP-1109: port plugins/QMLView
OP-1109: port plugin/welcome
OP-1109: port coreplugin/AutorsDialog.
TODO: fix dialog/view size handling
OP-1109: port plugins/pfdqml
OP-1109: fix uninitialized use of m_container
Merge remote-tracking branch 'origin/shared/OP-1109_qtquick2' into thread/OP-1107_About_dialog_enhancements

Conflicts:
	ground/openpilotgcs/src/plugins/coreplugin/aboutdialog.cpp
	ground/openpilotgcs/src/plugins/coreplugin/coreplugin.pro
	ground/openpilotgcs/src/plugins/coreplugin/qml/AboutDialog.qml
	ground/openpilotgcs/src/plugins/coreplugin/qml/ScrollDecorator.qml
	ground/openpilotgcs/src/plugins/coreplugin/qml/TabWidget.qml
OP-1109: added required DLLs
OP-1107 Implements the new About dialog in QtQuick 2.0.
Merge remote-tracking branch 'opgit/shared/OP-1109_qtquick2' into thread/OP-1107_About_dialog_enhancements