Document library addition

[maxwildersmith]

Just leave a comment on here documenting how to add 3rd-party libraries to the simulation.

Steps to add libraries to Python in blender (Windows).

1. In the blender command prompt, enter “import sys” followed by “sys.exec_prefix”
2. Enter “cd” followed by the address given and open Microsoft PowerShell.
3. Type “.\bin\python.exe -m ensurepip” to make sure you have pip installed.
4. Type “.\scripts\pip3.exe install insert package name(s) here" to download the packages for use in blender.

Modules needed:
https://github.com/KieranWynn/pyquaternion