SWDEV-284895 - Adding kind metadata and launch init/fini marked kernels

Change-Id: If2b21c4b98567632c426943e0b69aca8d6f1ec2a

rocclr/platform/program.hpp

@@ -235,6 +235,9 @@ class Program : public RuntimeObject {
   void setVarInfoCallBack(VarInfoCallback callback) {
     varcallback = callback;
   }
+
+  //! Actions to perform during program unload
+  void unload();
 };
 
 /*! @}