Add SVD primitive (#809)

Add SVD op using Accelerate's LAPACK following
https://developer.apple.com/documentation/accelerate/
compressing_an_image_using_linear_algebra

Co-authored-by: Nicolo Valigi <nvaligi@apple.com>

mlx/backend/metal/primitives.cpp

@@ -890,4 +890,10 @@ void QRF::eval_gpu(
   throw std::runtime_error("[QRF::eval_gpu] Metal QR factorization NYI.");
 }
 
+void SVD::eval_gpu(
+    const std::vector<array>& inputs,
+    std::vector<array>& outputs) {
+  throw std::runtime_error("[SVD::eval_gpu] Metal SVD NYI.");
+}
+
 } // namespace mlx::core