Fix raymath undefined symbols for desktop and web

src/rcore.c

@@ -109,7 +109,6 @@
 #define RLGL_IMPLEMENTATION
 #include "rlgl.h"                   // OpenGL abstraction layer to OpenGL 1.1, 3.3+ or ES2
 
-#define RAYMATH_IMPLEMENTATION      // Define external out-of-line implementation
 #include "raymath.h"                // Vector3, Quaternion and Matrix functionality
 
 #if defined(SUPPORT_GESTURES_SYSTEM)

src/rcore.h

@@ -27,6 +27,8 @@
 
 #include "raylib.h"
 #include "rlgl.h"
+
+#define RAYMATH_IMPLEMENTATION
 #include "raymath.h"