Use ideas from Pernosco

[emoon]

https://pernos.co/ has some interesting ideas, but doesn't exactly align with the goals of ProDBG in general.

1. ProDBG is open source, Pernosco is not and costs money
2. Pernosco targets x64 only because of rr
3. Pernosco is web-based which has it's upsides at times but is not what I want.

Still some of the ideas when it comes to analyze thing over a time-line is super appealing even if rr would only work on Linux right now I think it's worth spending time on