Debian: add missing source format
Debian: add missing source format

Without this file, format is considered to be 1.0, where it should be 3.0


satovey/heekscnc,jihyun-kim/heekscnc,jihyun-kim/heekscnc,satovey/heekscnc,satovey/heekscnc,asmuelle/heekscnc,satovey/heekscnc,jihyun-kim/heekscnc,asmuelle/heekscnc,asmuelle/heekscnc,asmuelle/heekscnc,jihyun-kim/heekscnc