Input: docs - convert interactive.fig from xfig to svg

We're using svg as the standard format for vectorial images.

Convert it to .svg, in a way that it is easily editable.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>