Add packaging stuff (just .deb for now)

etc/linkwallet.service

@@ -0,0 +1,10 @@
+[Unit]
+Description=linkwallet
+
+[Service]
+ExecStart=/usr/bin/linkwallet -db-path /var/lib/linkwallet/linkwallet.db
+User=linkwallet
+Group=linkwallet
+
+[Install]
+WantedBy=multi-user.target

etc/postinstall.sh

@@ -0,0 +1,5 @@
+#!/bin/sh
+
+systemctl daemon-reload
+systemctl enable linkwallet
+systemctl start linkwallet

etc/postremove.sh

@@ -0,0 +1,4 @@
+#!/bin/sh
+
+userdel linkwallet
+systemctl daemon-reload

etc/preinstall.sh

@@ -0,0 +1,3 @@
+#!/bin/sh
+
+useradd linkwallet

etc/preremove.sh

@@ -0,0 +1,4 @@
+#!/bin/sh
+
+systemctl disable linkwallet
+systemctl stop linkwallet