Angle cleanup - BINANG_TO_RAD, BINANG_TO_RAD_ALT (#1158)

* Run formatter

* Touch up angle macros (parentheses and hex constants)

* Add `BINANG_TO_RAD_ALT`

* Swap `BINANG_TO_RAD` and `BINANG_TO_RAD_ALT`

* Run formatter

src/code/sys_math_atan.c

@@ -131,5 +131,5 @@ s16 Math_Atan2S(f32 x, f32 y) {
 }
 
 f32 Math_Atan2F(f32 x, f32 y) {
-    return Math_Atan2S(x, y) * (M_PI / 32768.0f);
+    return BINANG_TO_RAD(Math_Atan2S(x, y));
 }