Integrate CircularBuffer as essential part of loading files from CD and dedicate file processing to the FileProcessor

include/PSX/File/Processor/file_processor.hpp

@@ -51,6 +51,8 @@ namespace JabyEngine {
             }
         };
 
+        // The nothing state
+        State create(const uint32_t* data_adr, const Nothing& nothing);
         State create(const uint32_t* data_adr, const SimpleTIM& file);
     }
 }