* Fix remaining <string> -> <cstring> for GCC compilation (#3114 follow-up)
MWerks' <string> header transitively includes C string functions
(memcpy, strlen, strcmp, etc.), but GCC/Clang's <string> is the C++
std::string header. These files all use C string functions and should
include <cstring> instead.
* Use std::isnan instead of isnan for GCC compilation
GCC's <cmath> places isnan in the std namespace. Using the unqualified
isnan fails to compile with GCC/Clang.
* Fix cCcD_Src types: s32 -> u32 for bitmask fields
cCcD_SrcObjCommonBase::mSPrm, cCcD_SrcObjTg::mType, and
cCcD_SrcObjAt::mType are used as bitmasks (SetType/SetSPrm take u32,
MskType/MskSPrm use u32, values like 0xFFFFFFFF are common in
aggregate inits). Change from s32 to u32 to match usage.
Also fix AT_TYPE_WOLF_ATTACK/AT_TYPE_UNK to use unsigned literals,
and remove now-unnecessary (s32) casts on hex literals in collision
source data.
* Mark dummy() functions as static to avoid multiple definition errors
These decomp artifact functions have the same name and signature across
TUs, causing linker errors when building as a single binary.
* Remove d_a_npc3.cpp
This file appears to not actually be real and the asserts in its
functions all reference d_a_npc2.cpp instead.
* d_a_npc debug almost matching
* 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
Luke Street