Media downloading indexing options (round 2) (#14)

* Adds options + option builder + metadata parsing for media thumbnails

* Added release-type options to media profile; built option parser for indexing operations

* Added new media_profile options to creation form; made show helper for rendering database items

* Added options for downloading/embedding metadata

* Adds option on sources to not download media (index only)

* reformatted docs

lib/pinchflat_web/controllers/media_profiles/media_profile_html.ex

@@ -10,4 +10,12 @@ defmodule PinchflatWeb.MediaProfiles.MediaProfileHTML do
   attr :action, :string, required: true
 
   def media_profile_form(assigns)
+
+  def friendly_format_type_options do
+    [
+      {"Include (default)", :include},
+      {"Exclude", :exclude},
+      {"Only", :only}
+    ]
+  end
 end