implement ToBase36 for u64; room id to u64; sprite id to u64; tile id to u64; sprite.dialogue -> sprite.dialogue_id

src/room.rs

@@ -1,4 +1,4 @@
-use crate::{Exit, ExitInstance, Instance, mock, Position, from_base36, to_base36};
+use crate::{Exit, ExitInstance, Instance, mock, Position, from_base36, ToBase36};
 
 #[derive(Debug, Eq, PartialEq)]
 pub struct Room {
@@ -123,13 +123,13 @@ impl ToString for Room {
 
         format!(
             "ROOM {}\n{}{}{}{}{}\nPAL {}",
-            to_base36(self.id),
+            self.id.to_base36(),
             tiles,
             if self.name.as_ref().is_some() { format!("\nNAME {}", self.name.as_ref().unwrap()) } else { "".to_string() },
             items,
             exits,
             endings,
-            to_base36(self.palette_id)
+            self.palette_id.to_base36()
         )
     }
 }