Fix additional bug #1413 - p5.Renderer2D.textWidth
Fix additional bug #1413 - p5.Renderer2D.textWidth

When using an opentype font, the 2D renderer doesn't call
p5.Font.textWidth with a fontSize parameter.  This causes the font to
default to looking for a fontSize from it's parent property.  This is a
problem when using multiple renderers.

Jared-Sprague/p5.js,johnpasquarello/p5.js,limzykenneth/p5.js,kadamwhite/p5.js,black-kite/p5.js,mlarghydracept/p5.js,bomoko/p5.js,dhowe/p5.js,shiffman/p5.js,Jared-Sprague/p5.js,joecridge/p5.js,johnpasquarello/p5.js,karenpeng/p5.js,shiffman/p5.js,joecridge/p5.js,black-kite/p5.js,nucliweb/p5.js,limzykenneth/p5.js,bomoko/p5.js,kennethdmiller3/p5.js,indefinit/p5.js,kennethdmiller3/p5.js,kadamwhite/p5.js,sakshamsaxena/p5.js,nucliweb/p5.js,indefinit/p5.js,mlarghydracept/p5.js,dhowe/p5.js,processing/p5.js,sakshamsaxena/p5.js,processing/p5.js,karenpeng/p5.js