Adds CI CD with deb for external deps

external-dependencies/deb-packages/avs/debian/control

@@ -0,0 +1,21 @@
+Source: libavs-dev
+Section: contrib/devel
+Priority: optional
+Maintainer: Legatus Team <legatus@defence-elec.de>
+Build-Depends: debhelper (>= 12), qt6-base-dev
+Standards-Version: 4.6.0
+Vcs-Browser: https://internal-repo.sl.defence-elec.de/#browse/browse:external-rpms:general
+Vcs-Git: https://internal-repo.sl.defence-elec.de/external-rpms/general/libavs-dev.git
+
+Package: libavs-dev
+Architecture: amd64
+Depends: libqt6core6, libqt6gui6, libqt6widgets6, ${shlibs:Depends}, ${misc:Depends}
+Description: AVS library - development files (contract-based license)
+ AVS (Application Visualization System) library for Legatus.
+ .
+ License: Contract-based (no file required)
+ Customer has lifetime license contract.
+ .
+ This package contains the development files for AVS library.
+ .
+ Available from SCM: https://internal-repo.sl.defence-elec.de/#browse/browse:external-rpms:general