adding rss module from aikaterna to fix double post issue

rss/info.json

@@ -0,0 +1,10 @@
+{
+    "author": ["aikaterna"],
+    "install_msg": "Thanks for installing.",
+    "short": "Read RSS feeds.",
+    "description": "Read RSS feeds.",
+    "tags": ["rss"],
+    "permissions": ["embed_links"],
+    "requirements": ["bs4", "feedparser>=6.0.0", "webcolors==1.3"],
+    "end_user_data_statement": "This cog does not persistently store data or metadata about users."
+}