Add proper 'viewBox', set 'inkscape:document-units', set maximum em-size to 2048 as is typical in TrueType.

Add proper 'viewBox', set 'inkscape:document-units', increased maximum emsize to 2048 (typical of TrueType).

rename "set width" and "units per em" to "Em-size"

remove side bearing guides from "setup typography canvas" extension

Adding numbers to the names of the typography related extensions so that they are displayed in the extensions menu in the correct order that the users are supposed to use them.

actually fontforge flipping of y-axis for svgfont glyphs is compliant with the svg spec. So we need to do it also.

Extension for setting up the document dimension according to font metrics provided by the user. It creates horizontal guidelines for baseline, ascender, descender, x-height, caps height and also vertical guidelines for left and right side bearings.