Add sound volume management and language selection

Not all translated yet though

.tmp

@@ -0,0 +1,9 @@
+:look
+say player "It's a bottle."
+stop
+
+:pickup
+inventory_add r9_bottle true
+set_active r9_bottle_left false
+set_active r9_bottle_middle false
+set_active r9_bottle_right false