Also fixes:
- forcing the annotation scope to "full schematic" when run
as a prerequisite to Generate Netlist.
- a long-standing bug where displaying extra items in a dialog
would mess up the height of the HTML_REPORT_PANEL (becasue
we were setting the html window's height rather than its
parent flexgrid.
- initializing the annotation radio buttons to safe values
(full schematic and keep existing)
Fixes: lp:1750062
* https://bugs.launchpad.net/kicad/+bug/1750062
* Split and rewrite the preview window and canvas.
* Create a new class for handling the board information.
* Adds new render targets: openGL, legacy, and ray tracing.
* Render targets take full advantage of the new 3D plugins system and 3D cache
for a fast 3D model loading.
* Faster board loading.
* New OpenGL render is faster than the old one.
* New ray tracing render target with a post processing shader.
* Use of new 3D plugins (WRL, X3D, STEP and IGES) and 3D model caching.
* Preview of 3D model while browsing the file name.
* 3D preview of the footprint while adding / align 3D shapes.
* Render of 3D models according to attributes: Normal, Normal+Insert, Virtual.
* Pivot rotation centered in one point over the PCB board.
* Shortcuts keys improved for XYZ orientation..
* Animated camera.