feat(docker): add dockerfile

[sammcj]

Example docker-compose.yaml:

services:
  &name localgpt-vision:
    container_name: *name
    hostname: *name
    build:
      context: .
      dockerfile: Dockerfile
    volumes:
      - /path/to/your/storage/localgpt-vision/.byaldi:/app/.byaldi
      - /path/to/your/storage/localgpt-vision/uploaded_documents:/app/uploaded_documents
      - /path/to/your/storage/localgpt-vision/hfcache:/home/app/.cache/huggingface
      - /path/to/your/storage/localgpt-vision/sessions:/app/sessions
    ports:
      - 5050:5050
    security_opt:
      - no-new-privileges:true
    restart: unless-stopped
    runtime: nvidia
    deploy:
      resources:
        reservations:
          devices:
            - driver: nvidia
              count: all
              capabilities: ["compute", "utility", "graphics"]