So I spent the legwork on this so you don’t have to 
I got a Windwaker like hd texture pack to work for Super mario 64 with bizhawk and Crowd Contol!
Download:
https://drive.google.com/open?id=1bKaM61hy2Oof1o4MB5q4CL8pYk90xTMZ
How to install:
Search %appdata% on your computer and locate mupen64plus folder.
In there create a new folder named cache.
Put the SUPER MARIO 64_HIRESTEXTURES.htc file you just downloaded into cache folder.
Now open Bizhawk
Go config, cores, n64 video plugin settings.
Make sure your active video plugin is GlideN64.
Click glideN64 tab, texture settings, select the hires textures box, and hires full alpha channel, texture cache compression, and save texture cache!
Hit save then run your Super Mario 64 rom!
Enjoy!!