Add florence 2

[MadeWithStone]

Description

This PR adds support for florence2 in workflows. It allows for a wide variety of computer vision tasks with prompts and finetuned loras. The node returns both raw outputs from the model, and parsed supervision detections.

Type of change

Please delete options that are not relevant.

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [x] This change requires a documentation update

How has this change been tested, please provide a testcase or example of how you tested the change?

• hosting the inference server on a gpu virtual machine (gcp ce) and connecting to the server using roboflow.com as the client