refactor: add elixir + phoenix skeleton

priv/repo/seeds.exs

@@ -0,0 +1,11 @@
+# Script for populating the database. You can run it as:
+#
+#     mix run priv/repo/seeds.exs
+#
+# Inside the script, you can read and write to any of your
+# repositories directly:
+#
+#     ComponentsElixir.Repo.insert!(%ComponentsElixir.SomeSchema{})
+#
+# We recommend using the bang functions (`insert!`, `update!`
+# and so on) as they will fail if something goes wrong.