Created generic ReturnCode class and common includes header
Change-Id: I2d294398d43d44596570faa56ce39ac69a9f0f50
diff --git a/src/hei_includes.hpp b/src/hei_includes.hpp
new file mode 100644
index 0000000..fa2506b
--- /dev/null
+++ b/src/hei_includes.hpp
@@ -0,0 +1,10 @@
+#pragma once
+
+// The purpose of this file is to include common headers that will be used
+// throughout this library.
+
+#include <stdint.h>
+
+#include <hei_return_code.hpp>
+#include <hei_user_defines.hpp> // For HEI_ASSERT, HEI_INF, and HEI_ERR
+