Added SAM2 model and post-processing

[mese79]

• Added SAM2 large and base_plus modes
• Updated post-processing using SAM2 base_plus instead of light_hq_sam
• Updates setup toml and provided envs

The setup process might be still problematic, and it needs more testing.
SAM2 can be installed easily using conda, but for pip, it will be installed from the git repo. I need to find a way to publish it to pypi since it doesn't support github link dependency.

[jdeschamps]

Two ways forward:

1. We could make it a dependency without Github and then write instructions in the README to install SAM2 via conda. Would that be PyPi compatible?

2. Make SAM2 an optional dependency, detect it at run time and guard against it not being present.

What do you think?

Can you edit the README?

[mese79]

Both solutions seem good! Also, another way is to make a SAM2 pypi package just for our installation purpose.
There is one on pypi, but it seems it's not up to date and the maintainer is unknown.
First I need to check why tests won't pass anymore! :(

[jdeschamps]

Both solutions seem good! Also, another way is to make a SAM2 pypi package just for our installation purpose. There is one on pypi, but it seems it's not up to date and the maintainer is unknown. First I need to check why tests won't pass anymore! :(

I would not commit to maintain a PyPi SAM 2 package! Things change too fast.

[mese79]

I commented out the sam-2 dependency from pyproject.toml since the installation of sam-2 via pip would turn into a mess easily!
So, I guess I need to update the README to emphasize the installation process using conda and the provided yaml files.