[debug runtime] _run_debug may get error layer output

problem

Since all data_entry_ 's memory space is according to JSON file, different layer’s output may use a same ‘data_entry_’ item. _run_debug in debug_runtime.py calls run_individual at first, then append every output from ‘data_entry_’ to _output_tensor_list. In short, if we call _run_debug and get output from _output_tensor_list, we may find some layers output has modified by other layers.

how to fix

We can alloc another ‘data_entry_’ for debug runtime, which will save all layers output, when calling run_individual. Then append it into _output_tensor_list.