HEI: initial "hello world"

Change-Id: I8d4f1994a58afdf24558bb528de632de0511c75c
diff --git a/sim/hei_sim_main.cpp b/sim/hei_sim_main.cpp
new file mode 100644
index 0000000..bfce2d0
--- /dev/null
+++ b/sim/hei_sim_main.cpp
@@ -0,0 +1,18 @@
+
+#include "../hei_isolator.hpp"
+
+namespace HEI_SIM
+{
+
+int main()
+{
+    HEI::Isolator iso;
+
+    iso.initialize();
+
+    iso.isolate();
+
+    return 0;
+}
+
+}; // end namespace HEI_SIM