Fix image structure for OpenAI API
Implement base64 image support for OpenAI
Image Support: Some APIs (Gemini) require mime type for URL and Base64 format
Image Support: Update OpenAI and Anthropic API to support new image structure
Image Support: Add Gemini 2.0 Flash Experimental support and implement Image support
Image Support: Create example with Image support
Image Support: Fix rebase issue
Image Support: Fix example and make it runnable from cargo