move implementation to internal/ directory (#828)

packaging/deb/debian/rules

@@ -34,7 +34,7 @@ override_dh_auto_install:
 	dh_install artifacts/docs/html usr/share/doc/zrepl/docs/
 
 	# install examples
-	dh_install config/samples/* usr/share/doc/zrepl/examples
+	dh_install internal/config/samples/* usr/share/doc/zrepl/examples
 
 	# install default config
 	mkdir -p debian/tmp/etc/zrepl

packaging/rpm/zrepl.spec

@@ -49,7 +49,7 @@ install -Dm 0644 artifacts/bash_completion              %{buildroot}%{_datadir}/
 install -Dm 0644 artifacts/rpmbuild/zrepl.yml           %{buildroot}%{_sysconfdir}/zrepl/zrepl.yml
 install -d                                              %{buildroot}%{_datadir}/doc/zrepl
 cp -a   artifacts/docs/html                             %{buildroot}%{_datadir}/doc/zrepl/html
-cp -a   config/samples                                  %{buildroot}%{_datadir}/doc/zrepl/examples
+cp -a   internal/config/samples                         %{buildroot}%{_datadir}/doc/zrepl/examples
 
 %post
 %systemd_post zrepl.service