Reducing repo size & pre-trained model

[sidml]

Hi!
Thanks for sharing your work. While cloning, I observed that the repo currently takes up around 97MB of disk space. Since you don't share a pre-trained model I found it weird that it takes so much space.
It seems most of the space is consumed by .git/objects/pack/ folder. Maybe you could remove it to reduce disk usage.
Also, it will be nice if you could provide pre-trained model.
Thanks.