Fix JUT_ASSERT and several other macros (#2711)

* Fix JUT_ASSERT to be a nested define

* Switch names that appear in asserts to be constants instead of defines

* Replace `0` in asserts with `NULL` or `FALSE`

* Fix fpclassify

* Fix ARRAY_SIZE

* Use G_CM3D_F_INF

* More fixes for fpclassify

* Remove FLOAT_LABEL

* Remove incorrect FLAG_ON macro

* Remove UNK_BSS macro

* Silence clangd unused header warning for PCH

src/d/d_drawlist.cpp

@@ -3,7 +3,7 @@
 // Translation Unit: d/d_drawlist
 //
 
-#include "d/dolzel.h"
+#include "d/dolzel.h" // IWYU pragma: keep
 
 #include "JSystem/J2DGraph/J2DAnimation.h"
 #include "JSystem/J2DGraph/J2DGrafContext.h"
@@ -32,7 +32,7 @@ public:
 
     J2DPicture* getPicture(u64 i_tag) {
         J2DPane* pane = getPane(i_tag);
-        JUT_ASSERT(1553, pane != 0);
+        JUT_ASSERT(1553, pane != NULL);
         if (pane->getTypeID() != 0x12) {
             return NULL;
         }