moving restarter application into pleroma repo

restarter/mix .exs

@@ -0,0 +1,21 @@
+defmodule Restarter.MixProject do
+  use Mix.Project
+
+  def project do
+    [
+      app: :restarter,
+      version: "0.1.0",
+      elixir: "~> 1.8",
+      start_permanent: Mix.env() == :prod,
+      deps: deps()
+    ]
+  end
+
+  def application do
+    [
+      mod: {Restarter, []}
+    ]
+  end
+
+  defp deps, do: []
+end