Add liquid foundation models support

[mkopcins]

Add liquid foundation models support, especially 2.5 versions and vlm support
https://www.liquid.ai/blog/introducing-lfm2-5-the-next-generation-of-on-device-ai
https://huggingface.co/collections/LiquidAI/lfm25

Current status:

• LiquidAI/LFM2.5-1.2B-Instruct - waiting for review.
• LFM2.5-VL-1.6B - is blocked by the following issue: Add VLM support #552