[Feature] Support varied input formats for remaining VLM

Checklist

• 1. If the issue you raised is not a feature but a question, please raise a discussion at https://github.com/sgl-project/sglang/discussions/new/choose Otherwise, it will be closed.
• 2. Please use English, otherwise it will be closed.

Motivation

Currently SGL has supported varied format inputs for some of VLMs. We should support all remaining VLM and add tests (Parent issue: https://github.com/sgl-project/sglang/issues/5964)

• We should follow the refactored process in #6659 (Note that it's somewhat outdated, check with the latest main)

• QwenVL (@ysulsky https://github.com/sgl-project/sglang/pull/6136)

• Gemma (@ysulsky https://github.com/sgl-project/sglang/pull/6136)

• KimiVL (@lifuhuang https://github.com/sgl-project/sglang/pull/6599)

• Phi4mm

• internvl

• mllama4

• pixtral

• deepseek_vl_v2

• minicpm

• janus_pro

Related resources

No response