Terminal based flamegraph viewer

[zz85]

I was thinking along the ideas of extending the ease of use of profile-bee, since it has already been a self-contained binary, why not have a terminal based flamegraph viewer.

Turns out good ideas are common, and there are some solid examples

https://github.com/YS-L/flamelens https://github.com/laixintao/flameshow https://github.com/4rtzel/tfg?tab=readme-ov-file

Would be nice to integrate Flamelens into the realtime profiling capabilities of profile-bee