Add a precompiled header for RELs (#2597)

src/JSystem/JMath/JMath.cpp

@@ -135,4 +135,4 @@ void JMAMTXApplyScale(register const Mtx src, register Mtx dst, register f32 xSc
         psq_st z, 40(dst), 0, 0
     }
 #endif  // clang-format on
-}
+}

src/JSystem/JMath/random.cpp

@@ -8,4 +8,4 @@
 /* 80339AE4-80339AEC -00001 0008+00 0/0 0/0 0/0 .text            __ct__Q25JMath13TRandom_fast_FUl */
 JMath::TRandom_fast_::TRandom_fast_(u32 param_0) {
     value = param_0;
-}
+}