Allow for creating reports from other reports

[janaknat]

The APerf reports contain the data archives. Use these if a report is passed in to the aperf report sub-command. The aperf report command will fail if a report is given as an arg and the report name is omitted. Also, move to using PathBuf instead of String for path.

Testing: Tested by generating reports with:

• Report dir and data
• Report tar and data
• Report tar and report dir
• Data and data

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