Allow access via Glyph name for convenience etc.
a8de1673ca83475227fcc914fd94a9a0be1cba79 See UISceneDemo03 new Button(options.renderModes, fontSymbols, " "+fontSymbols.getUTF16String("pause")+" ", buttonWidth, buttonHeight); // pause Unicode codepoint symbol is also contained in Font.Glyph