Native support for cProfile dump

I want to analyze some code and I do really love your project! The only problem ist, cProfile is the only tool that gives me reasonable outputs, without crashing. Sadly, speedscope does not support their profile dumps.

Is there a way to make them readable? I was able to use [flameprof](https://github.com/baverman/flameprof) to generate an SVG, but that's it, it can't be interacted with or zoomed in.

If there is not alternative, maybe I will try to implement a translator from cProfile dump files to speedscope json files, but I am booked out until end of june.