Missing .gitignore

[omalk98]

Would be great to have a .gitignore file to limit the cached files from being uploaded.

Here's an example for a py project .gitignore.

https://github.com/omalk98/CVI-Group-6/blob/main/.gitignore

[mnajibi]

You can find this file here: https://github.com/mnajibi/tml/blob/main/tml/.gitignore