Add track type to admin dashboard

db/migrate/20190622061319_create_track_types.rb

@@ -0,0 +1,11 @@
+class CreateTrackTypes < ActiveRecord::Migration[5.1]
+  def change
+    create_table :track_types do |t|
+      t.references :program
+      t.string :title, null: false
+      t.string :description
+
+      t.timestamps
+    end
+  end
+end