[decomp] fisher and FIN.DGO (finalboss) level (#899)

* decomp `fisher`, `robotboss`, `light-eco`, `green-eco-lurker`, `sage-finalboss`, `robotboss-weapon`, `robotboss-misc`

* fixes

* add files

* add `:states` list to `deftype` and fix files

* test state forward decl's on a few more types

* also the refs

* add light-eco

* whatever

test/decompiler/reference/engine/camera/camera_REF.gc

@@ -1209,11 +1209,11 @@
 
 ;; definition for function cam-slave-go
 ;; INFO: Return type mismatch int vs none.
-(defun cam-slave-go ((arg0 camera-slave))
+(defun cam-slave-go ((arg0 state))
   (with-pp
    (cam-slave-init-vars)
    (let ((t9-1 (the-as (function object) enter-state)))
-    (set! (-> pp next-state) (the-as state arg0))
+    (set! (-> pp next-state) arg0)
     (t9-1)
     )
    0