Add statistics to the archive

**Original author:** douglance
**Original created at:** 2019-02-19T21:05:48Z
**Original URL:** https://github.com/fabiospampinato/vscode-todo-plus/issues/174

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It would be great to see my estimates vs lasted for my Archive, so I can compare estimates to actuals so far in a project. 

Thanks for a great extension. I love it!