Matched some controller files (#178)

* osPfsIsPlug.c and osContSetCh.c OK

* update

* __osPfsGetStatus.c OK

* removed unused asm

* Updated all libultra controller files to use new structs instead of the temporary structs. Added os_pfs.h

* controller updates

* fixed header guard

* Made suggested changes

src/code/z_debug.c

@@ -1,6 +1,6 @@
 #include <ultra64.h>
+#include <ultra64/controller.h>
 #include <global.h>
-#include <PR/os_cont.h>
 
 typedef struct {
     u8 x;