Update support for new models:

1. Add support for the new model `glm.py` (GLM-4V)
2. Rename `idefics2.py` to `idefics.py`, which includes support for IDEFICS 3 in addition to IDEFICS 2
3. Update `minicpm.py` to include support for V2.6 and correct the logic to support V2.0 as well