Implements full player get

backend/selectPlayer.sql

@@ -0,0 +1,11 @@
+ -- 1. Get player and guild info (1 row)
+select
+  p.id as PlayerID,
+  p.name as PlayerName,
+  g.id as GuildID,
+  g.name as GuildName
+from
+  player p
+  join guild g on p.guild = g.id
+where
+  p.name = $1;