Add precise code intel blog posts for 3.17 release
Created by: efritz
This adds two blog posts that I think should go out near/with the 3.17 release:
- One is an evolution of the precise code intel backend, which was inspired by @mrnugget asking me for a blog post on why we rewrote our backend in Go
- The other is a series of steps that I made in this last release to increase the performance of the precise code intel backend.
I think there are some interesting point in this post - it gives another look at what kind of work we do that doesn't necessarily have a lot of visibility, which may be interesting to other engineers (customers and also potential hires).