Adding support for getscenes.com

Scenes (https://getscenes.com) is a platform for connecting cultural events with context and criticism. Adding support for embedding our events allows blogs and sites to easily reference and enrich their content with live event details.

providers/scenes.yml

@@ -0,0 +1,11 @@
+- provider_name: Scenes
+  provider_url: https://getscenes.com
+  endpoints:
+    - schemes:
+        - https://getscenes.com/e/*
+        - https://getscenes.com/event/*
+      url: https://getscenes.com/oembed
+      example_urls:
+        - https://getscenes.com/oembed?url=https://getscenes.com/e/8a07afbb-0a7c-4314-b027-15a19e25c51a;format=json
+        - https://getscenes.com/oembed?url=https://getscenes.com/event/8a07afbb-0a7c-4314-b027-15a19e25c51a;format=json
+      discovery: true