libultra cleanup (#215)

* cleanup libultra

* fixes

- use quotes instead of <> for includes
- add macros for zelda specific thread priorities
- fix Makefile
- properly format the remaining pfs structs

* fix button macros + add CHECK_BTN_ANY/CHECK_BTN_ALL

* remove ULTRA_ABS

* fix includes

* update z_player.c/z_lib.c + run format.sh

* merge upstream/master

* fix include in En_Goroiwa

* fix includes

src/libultra_code_O2/osContSetCh.c

@@ -0,0 +1,21 @@
+#include "ultra64.h"
+#include "global.h"
+
+/*
+ * s32 osContSetCh(u8 ch)
+ * This function specifies the number of devices for the functions to access when those functions access to multiple
+ * direct SI devices.
+ */
+s32 osContSetCh(u8 ch) {
+    __osSiGetAccess();
+
+    if (ch > MAXCONTROLLERS) {
+        __osMaxControllers = MAXCONTROLLERS;
+    } else {
+        __osMaxControllers = ch;
+    }
+
+    __osContLastPoll = -2;
+    __osSiRelAccess();
+    return 0;
+}