BREAKING CHANGE: Renamed Camera -> Camera3D

Just added a fallback in the meantime...

examples/core/core_3d_mode.c

@@ -21,7 +21,7 @@ int main()
     InitWindow(screenWidth, screenHeight, "raylib [core] example - 3d mode");
 
     // Define the camera to look into our 3d world
-    Camera camera;
+    Camera3D camera;
     camera.position = (Vector3){ 0.0f, 10.0f, 10.0f };  // Camera position
     camera.target = (Vector3){ 0.0f, 0.0f, 0.0f };      // Camera looking at point
     camera.up = (Vector3){ 0.0f, 1.0f, 0.0f };          // Camera up vector (rotation towards target)