Identify skyInit and rename game_135c70.c to sky.c

src/include/game/sky.h

@@ -1,11 +1,11 @@
-#ifndef _IN_GAME_GAME_135C70_H
-#define _IN_GAME_GAME_135C70_H
+#ifndef _IN_GAME_SKY_H
+#define _IN_GAME_SKY_H
 #include <ultra64.h>
 #include "types.h"
 
 u32 func0f135c70(void);
 u32 func0f135f08(void);
-void func0f1360e8(void);
+void skyInit(void);
 u32 func0f13687c(void);
 
 #endif