Functions to add nodes and regs to IsolationChip class

Change-Id: I3361f23f795b9015235add237bf5a78bd8afa861
Signed-off-by: Zane Shelley <zshelle@us.ibm.com>
diff --git a/src/register/hei_hardware_register.hpp b/src/register/hei_hardware_register.hpp
index 0f5ac61..f69e8a7 100644
--- a/src/register/hei_hardware_register.hpp
+++ b/src/register/hei_hardware_register.hpp
@@ -293,4 +293,7 @@
     }
 };
 
+/** Pointer management for hardware registers. */
+using HardwareRegisterPtr = std::shared_ptr<const HardwareRegister>;
+
 } // end namespace libhei