Suppose you are provided a file process.txt having data in the following format: Process_Name Priority_Level Entry_Time P1 1 13.43.41

You need to write C++ code that should read data from the file and use that data to build doubly-linked for implementation of the priority Queue. The priority of the process should be according to the given priority_level(1 to 6, where 6 is least and 1 is higher) but if two processes with the same priority_level exist in the queue then the process with earlier entry time should exit first. User should be given choice to whether enter a new process into the queue or dequeue existing process.