Prevent overlaps in table layouts

[davelab6]

Either when the font is loaded, or when each keyframe is added, run over the advance widths of all the glyphs and then update the size of the glyph cells in the table layout, so that the glyphs never break out of their bounding box :)

[dberlow]

This is a gnarlier problem than it looks like. You'll notice we're in the widest location in the design space, that the I, J and L are swimming, and AE, NJ and etc are crashing, but... we're still in an array.

So, we've had the choice for a while, and going forward we can only really write an exception into the array composer that gives some glyphs 2x space?

Hmm, this isn't supposed to happen. The way I settled on was to set the variations to the widest settings, let the text wrap naturally, and then lock the cell widths at that value. This way each glyph has an amount of space proportional to its width, but doesn't move around as the animation progresses. Maybe my initial settings aren't actually the widest possible.

[graphicore]

The situation has improved, however, at the cost of having more double-cells. I was just trying with a current AmstelVar and I think it may need another pass. RobotFlex is handled better.