Support SVG file type

[synapticvoid]

SVG is the de facto standard exchange format in the "vectorial software" world. We should be able to import and export SVG files.

• Example: https://en.wikipedia.org/wiki/Scalable_Vector_Graphics#Example
• Qt SVG Generator example: http://doc.qt.io/qt-5/qtsvg-svggenerator-example.html

[GuillaumeLazar]

import and export SVG files 👍

[synapticvoid]

RIght! I corrected the issue, thanks :)