Port onboard-ml/gpu and offboard commands to Go

Description

• Implement interface and its methods for GPUs (AMD/NVIDIA)
• Create parent command gpu and its children status, capacity and onboard
• Port onboard-ml and offboard command
• Update InternalAPIURL and MakeInternalRequest utility functions to support queries
• Add scripts for driver and container runtime installation inside maint-scripts
• Add String() method inside gpudetect package

Checklist

• I have update updated the @version string in main.go. See https://semver.org/
• I have update CHANGELOG.md with a short description of changes.
• I have run swag init to update the swagger docs.

Marks #292 (closed) as done