chore: generate resources for pastes

Signed-off-by: SphericalKat <amolele@gmail.com>

priv/repo/migrations/20210811213141_create_pastes.exs

@@ -0,0 +1,14 @@
+defmodule Ketbin.Repo.Migrations.CreatePastes do
+  use Ecto.Migration
+
+  def change do
+    create table(:pastes, primary_key: false) do
+      add :id, :string, primary_key: true
+      add :is_url, :boolean, default: false, null: false
+      add :content, :text, null: false
+      add :belongs_to, references(:users, on_delete: :delete_all)
+    end
+
+    create index(:pastes, [:belongs_to])
+  end
+end