GIMP generating a SVG from a picture

The generation of a SVG in GIMP requires a path to be made around the shapes of interest.  This in turn requires the shapes of interest to be selected, because from there paths can be generated by placing a single path point using the path tool that looks like a pen and line with three dots:

click inside the area of interest, right-clicking and choose Select > To Path.

The generated path points can then be changed or simplified as needed.

Then from the path toolbox select the path and right-click selecting Export Path. 

Remember to add the file suffix of .svg

Et volia!