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_g3/absf.c

@@ -0,0 +1,5 @@
+#include "global.h"
+
+f32 absf(f32 a) {
+    return fabsf(a);
+}

src/libultra_code_O2_g3/sqrt.c

@@ -0,0 +1,10 @@
+#include "global.h"
+
+#ifndef __GNUC__
+#pragma intrinsic(sqrt)
+#define __builtin_sqrt sqrt
+#endif
+
+f64 sqrt(f64 f) {
+    return __builtin_sqrt(f);
+}