feat: New Gemini releases

[nalbantferhat]

Support for gemini-1.0-pro, gemini-1.0-pro-latest, gemini-1.5-pro, gemini-1.5-flash

#25

[nalbantferhat]

@aydinfatih or @bradleybernard could you please check and approve the pull requests if they are suitable?

[CameronKolick]

@bradleybernard @aydinfatih Is there an ETA on this getting approved and a new tag created to make it available? I want to use this project in my app but cannot without this.

[aydinfatih]

A separate method for each version does not seem very healthy to me. After a while, there may be a method stack. You can generate models with the help of this method. Or you can pass string to the model parameter in the following usage.

$this->generativeModel(model: ModelType::generateGeminiModel(variation: ModelVariation::FLASH, generation: 1.5));