* first draft of export to SVG. WIP
* enabled text rendeing - which is not quite right atm
* placeholder svg icon
* size the canvas based on the bounding box of elements
* Do not add opacity attributes if default
* render background rect
* Ensure arrows are in the same SVG group
* parse font-size from font
* export web fonts
* use fixed locations for fonts
* Rename export functions
* renamed export file
* oops broke the icon.
