get to compile with schematic as QGraphicsView

Several portions where commented out to satisfy the compiler.
Add schematic, draw something on mousePressEvent

Add a schematic view (with its scene) into a tab.
Draw small ellipses on mouse click.
Start transition of components to QGraphicsItem

Component inherits from QGraphicsItem.
Component need a boundRect() and paint() methods.
Bulk renamed member variables due to comflicts with Qt.

Renamed: isSelected to ElemSelected
Renamed: Type to ElemType
Simple test with mousePressEvent

Insert a new Ground symbol at avery mouse click on the schematic view.
Mouse insert Ground after selecting menubar option

Press Ground on the menu and insert into the Schematic.
debug print when component is selected on dock.

Print which component is clicked on the list of components.
Simple insert from list of components

By clicking on the list of components on the dock, or the ground
insert on the menu bar they can inserted on the schematic view.

Only Ground and Resistor are working (paint implemented).

Mouse move (click and drag) are handled by the framework.
set components as movable selectable
experiment with grid and mouse wheel to zoom
set cosmetic pen, not scalable thickness

Avoid line thickness to get scaled and ugly.
add control key to mouse wheel zoom