[SIS-xxx] adding sync of starboard posts and quotes, including migration script

python/tools/migrations/quotes-starboard-import/starboard_loader.py

@@ -0,0 +1,29 @@
+from sqlalchemy.sql import text
+
+
+def load_all_starboard_posts(conn):
+    squery = text("""select sp.id, sp.author_user_in_server_id, sp.source_channel_id, sp.server_id, sp.post_message_id, spr.reactor_user_in_server_id, sp.created
+from starboard_post sp
+inner join starboard_post_reaction spr
+on sp.id = spr.post_id
+and spr.created = (
+select spr.created 
+from starboard_post_reaction spr2 
+where spr2.post_id = sp.id 
+order by created limit 1
+                 )
+ where sp.ignored = false
+ """)
+    rs = conn.execute(squery)
+    found_posts = []
+    for post in rs:
+        found_posts.append({
+            'post_id': post[0],
+            'channel_id': post[2],
+            'message_id': post[4],
+            'adder_id': post[5],
+            'author_id': post[1],
+            'server_id': post[3],
+            'created': post[6]
+       })
+    return found_posts