feature: bash completes the vpn-* commands, their options and the names they take.

debian-package/debian/install

@@ -31,5 +31,6 @@ src/usr/lib/vpn-router/generate-config                usr/lib/vpn-router/
 src/usr/lib/vpn-router/vpnrouter_platforms/*.py       usr/lib/vpn-router/vpnrouter_platforms/
 src/usr/share/vpn-router/templates/*                  usr/share/vpn-router/templates/
 src/usr/share/vpn-router/sql/*                        usr/share/vpn-router/sql/
+src/usr/share/bash-completion/completions/*.bash      usr/share/bash-completion/completions/
 src/usr/lib/systemd/system/caddy.service.d/vpn-router.conf usr/lib/systemd/system/caddy.service.d/
 src/usr/share/doc/vpn-router/vpn-router.json.example  usr/share/doc/vpn-router/