chore: import upstream snapshot with attribution

gpu_easygraph/common/err.h

@@ -0,0 +1,20 @@
+#pragma once
+
+#include <string>
+
+namespace gpu_easygraph {
+
+typedef enum {
+    EG_GPU_SUCC = 0,
+    EG_GPU_FAILED_TO_ALLOCATE_HOST_MEM,
+    EG_GPU_FAILED_TO_ALLOCATE_DEVICE_MEM,
+    EG_GPU_DEVICE_ERR,
+    EG_GPU_UNKNOW_ERROR,
+    EG_UNSUPPORTED_GRAPH
+} EG_GPU_STATUS_CODE;
+
+std::string err_code_detail(
+    int status
+);
+
+} // namespace gpu_easygraph