libgnt/libgnt

Fix up some of the debian packaging with special thanks to hlieberman
release-2.x.y
2020-12-19, Gary Kramlich
925328c4d988
Fix up some of the debian packaging with special thanks to hlieberman

Testing Done:
Build and installed in a container without issue.

Reviewed at https://reviews.imfreedom.org/r/275/
syntax: regexp
^build(.+)?\/
^obj-.+\/
packaging\/debian\/.+\.substvars$
packaging\/debian\/.debhelper\/
packaging\/debian\/debhelper-build-stamp$
packaging\/debian\/files$
packaging\/debian\/libgnt.+\/
packaging\/debian\/tmp\/