feat: support vision models from xinference

[Minamiyama]

Description

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

Fixes # (issue)

Type of Change

Please delete options that are not relevant.

• [x] New feature (non-breaking change which adds functionality)

How Has This Been Tested?

• launch a vision model on xinference like qwen-vl-chat
• add a model as a provider
• in workflow mode, select the vision model in LLM node, an eye vison mark will be shown