Add ability to switch between deployed models

[RussellJimmies]

Description: Currently, users are experiencing suboptimal classification results from our deployed models. To address this issue and improve user satisfaction, it's crucial to assess and compare the performance of these models directly.

Proposed Solution: Implement a feature allowing users to seamlessly switch between different deployed models. This will enable sequential testing of each model under identical conditions, facilitating a direct comparison of their classification results.

• [x] Create endpoint that returns metadata for specified model

Metadata:

• Which seeds it identifies
• Versioning info:
  • When was built
  • Against which dataset was trained
  • Reference to config

Related Issues:

• [ ] https://github.com/ai-cfia/nachet-model/issues/1
• [x] https://github.com/ai-cfia/nachet-frontend/issues/28