Add anonymous and remote participations

priv/repo/migrations/20200116095117_create_admin_settings.exs

@@ -0,0 +1,15 @@
+defmodule Mobilizon.Repo.Migrations.CreateAdminSettings do
+  use Ecto.Migration
+
+  def change do
+    create table(:admin_settings) do
+      add(:group, :string)
+      add(:name, :string)
+      add(:value, :text)
+
+      timestamps()
+    end
+
+    create(unique_index(:admin_settings, [:group, :name]))
+  end
+end