no directory as assimp

[adrienhahahah]

I'm just a new beginner, want to run your code on my computer and try to learn something, my compiler told me this problem, and the next two lines too.

https://github.com/JoeyDeVries/Cell/blob/5a91a32c38b6eed2090420251c0a0acc380ffa45/cell/resources/mesh_loader.cpp#L13

[jbehley]

Ensure that you use git clone --recurse-submodules <url> or update the submodules with git submodule update. This will clone the assimp submodule.

[aimspike]

run following in your git shell/command line:

git submodule init
git submodule update

assimp will be cloned into your vender/assimp folder, as a submodule