libtorch-bin: init at 1.6.0

pkgs/development/libraries/science/math/libtorch/test/test.cpp

@@ -0,0 +1,7 @@
+#include <torch/torch.h>
+#include <iostream>
+
+int main() {
+  torch::Tensor tensor = torch::eye(3);
+  std::cout << tensor << std::endl;
+}