Implementation for "Parameter Exchange for Robust Dynamic Domain Generalization"

[abse4411]

Hello, we appreciate the help of Dassl! As our code is built on it, we would like to add our method to this repository.

Link of paper "Parameter Exchange for Robust Dynamic Domain Generalization", ACM MM 2023: https://dl.acm.org/doi/10.1145/3581783.3612318

Since our work is based on DDG merged on Jun 3, 2022, the major change in this PR is adding a new trainer (dassl/engine/dg/robust_ddg.py).

Lastly, the script "linter.sh" was run for checking before this commit.