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/osSpTaskYielded.c

@@ -0,0 +1,21 @@
+#include "global.h"
+
+u32 osSpTaskYielded(OSTask* task) {
+    u32 ret;
+    u32 status;
+
+    status = __osSpGetStatus();
+
+    if (status & SP_STATUS_YIELDED) {
+        ret = OS_TASK_YIELDED;
+    } else {
+        ret = 0;
+    }
+
+    if (status & SP_STATUS_YIELD) {
+        task->t.flags |= ret;
+        task->t.flags &= ~OS_TASK_DP_WAIT;
+    }
+
+    return ret;
+}