command line analysis tools support

Created by: joelagnel

Hi, Just posting some early patches to get feedback on the command line analysis tools feature. Forgive me for not adding proper docstrings which I'll add when posting follow ups (hence tagged RFC).

The idea is you can post-process traces or other data in a results directory, and get useful information from them without having to launch a browser or notebook environment. It fits very well with LISA's analysis architecture (libs/utils/analysis/) Some data is simple enough that it shouldn't need plotting. Also incase of results that need to be made more visual, I am planning to add some code that autogenerates a .html file by running a dynamically generated notebook and automatically launch a browser window to show them) - for example for analysis tools that do need to show something more visual.

Thanks, Joel