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/osAiSetNextBuffer.c

@@ -0,0 +1,25 @@
+#include "global.h"
+
+s32 osAiSetNextBuffer(void* buf, u32 size) {
+    static u8 D_80130500 = false;
+    u32 bufAdjusted = (u32)buf;
+    s32 status;
+
+    if (D_80130500) {
+        bufAdjusted = (u32)buf - 0x2000;
+    }
+    if ((((u32)buf + size) & 0x1FFF) == 0) {
+        D_80130500 = true;
+    } else {
+        D_80130500 = false;
+    }
+
+    status = HW_REG(AI_STATUS_REG, s32);
+    if (status & AI_STATUS_AI_FULL) {
+        return -1;
+    }
+
+    HW_REG(AI_DRAM_ADDR_REG, u32) = PHYSICAL_TO_VIRTUAL(bufAdjusted);
+    HW_REG(AI_LEN_REG, u32) = size;
+    return 0;
+}