Adds CI CD with deb for external deps

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

@@ -0,0 +1,18 @@
+Source: libgeographiclib-dev
+Section: libdevel
+Priority: optional
+Maintainer: Legatus Team <legatus@defence-elec.de>
+Build-Depends: debhelper (>= 12)
+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/git/external/geographiclib.git
+
+Package: libgeographiclib-dev
+Architecture: amd64
+Depends: libgeographiclib23, ${shlibs:Depends}, ${misc:Depends}
+Description: GeographicLib library - development files
+ GeographicLib library for Legatus.
+ .
+ License: MIT-style open source
+ .
+ This package contains the development files for GeographicLib library.