Move implementation of MakeBoxes for Graphics and Graphics3d to mathics.format.box

[mmatera]

This PR starts to reorganize the code for formatting Graphics and Graphics3D expressions according to the new organization. Also

• Following the scheme in Layout boxes, default values of Options in GraphicsBox and Graphics3DBox expressions are not shown.
• Fix render 3DBoxes including many points (example: Sphere[{pt1, pt2,...}]).

[mmatera]

Examples:

In master:

In[1] MakeBoxes[Graphics[{Disk[]}]]

Out[1]:=GraphicsBox[{DiskBox[]}, AlignmentPoint → Center, AspectRatio → Automatic, Axes → False, AxesLabel → None, AxesOrigin → Automatic, AxesStyle → {}, Background → Automatic, BaseStyle → {}, BaselinePosition → Automatic, ContentSelectable → Automatic, CoordinatesToolOptions → Automatic, Epilog → {}, FormatType → TraditionalForm, Frame → False, FrameLabel → None, FrameStyle → {}, FrameTicks → Automatic, FrameTicksStyle → {}, GridLines → None, GridLinesStyle → {}, ImageMargins → 0., ImagePadding → All, ImageSize → Automatic, LabelStyle → {}, LogPlot → False, Method → Automatic, PlotLabel → None, PlotRange → Automatic, PlotRangeClipping → False, PlotRangePadding → Automatic, PlotRegion → Automatic, PreserveImageOptions → Automatic, Prolog → {}, RotateLabel → True, Ticks → Automatic, TicksStyle → {}]

This branch:

In[1] MakeBoxes[Graphics[{Disk[]}]]

Out[1]:=GraphicsBox[{DiskBox[]}]

In Mathics-Django and Master:

With this branch:

[rocky]

LGTM. Nice improvements.