Add function to install borg dependencies

not sure this is even worth fooling with?  oh well, going with it for now

rattail_fabric/borg.py

@@ -0,0 +1,41 @@
+# -*- coding: utf-8; -*-
+################################################################################
+#
+#  Rattail -- Retail Software Framework
+#  Copyright © 2010-2018 Lance Edgar
+#
+#  This file is part of Rattail.
+#
+#  Rattail is free software: you can redistribute it and/or modify it under the
+#  terms of the GNU General Public License as published by the Free Software
+#  Foundation, either version 3 of the License, or (at your option) any later
+#  version.
+#
+#  Rattail is distributed in the hope that it will be useful, but WITHOUT ANY
+#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+#  FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+#  details.
+#
+#  You should have received a copy of the GNU General Public License along with
+#  Rattail.  If not, see <http://www.gnu.org/licenses/>.
+#
+################################################################################
+"""
+Fabric library for Borg backups
+
+https://www.borgbackup.org/
+"""
+
+from __future__ import unicode_literals, absolute_import
+
+from rattail_fabric import apt
+
+
+def install_dependencies():
+    """
+    Install the dependencies for Borg
+    """
+    apt.install(
+        'libacl1-dev',
+        'libfuse-dev',
+    )