Add planning frame and some shit from bay

code/controllers/hooks-defs.dm

@@ -0,0 +1,17 @@
+/**
+ * Startup hook.
+ * Called in world.dm when the server starts.
+ */
+/hook/startup
+
+/**
+ * Roundstart hook.
+ * Called in gameticker.dm when a round starts.
+ */
+/hook/roundstart
+
+/**
+ * Roundend hook.
+ * Called in gameticker.dm when a round ends.
+ */
+/hook/roundend