Integrate G15 submodules with Debian 13 packaging and devcontainer

packaging/overlays/v1/g15macro.control

@@ -0,0 +1,15 @@
+Source: g15macro
+Section: utils
+Priority: optional
+Maintainer: G15 packaging contributors <noreply@example.invalid>
+Build-Depends: debhelper-compat (= 13), libxtst-dev, libg15-dev, libg15render-dev, libg15daemon-client-dev
+Standards-Version: 4.7.0
+Homepage: https://sourceforge.net/projects/g15tools/
+Rules-Requires-Root: no
+
+Package: g15macro
+Architecture: any
+Depends: g15daemon, ${shlibs:Depends}, ${misc:Depends}
+Description: Macro recording/playback application for G15Daemon
+ G15macro records and plays back keyboard macros using the M and G keys
+ on Logitech G15 keyboards in an X11 session.