Add cat system CatScene support

src/scripts/mod.rs

@@ -66,6 +66,8 @@ lazy_static::lazy_static! {
         Box::new(kirikiri::mdf::MdfBuilder::new()),
         #[cfg(feature = "will-plus")]
         Box::new(will_plus::ws2::Ws2ScriptBuilder::new()),
+        #[cfg(feature = "cat-system")]
+        Box::new(cat_system::cst::CstScriptBuilder::new()),
     ];
     pub static ref ALL_EXTS: Vec<String> =
         BUILDER.iter().flat_map(|b| b.extensions()).map(|s| s.to_string()).collect();