feat(model): Add quantization load

[boss-chanon]

Why this PR

Add quantization load for QLoRA

Changes

• Add quantization load 8 bit
• Add quantization load 4 bit
• Load model to Memory instead GPUs

Related Issues

Close #

Checklist

• PR should be in the Naming convention
• Assign yourself in to Assigneees
• Tag related issues
• Constants name should be ALL_CAPITAL, function name should be snake_case, and class name should be CamelCase
• complex function/algorithm should have Docstring
• 1 PR should not have more than 200 lines changes (Exception for test files). If more than that please open multiple PRs
• At least PR reviewer must come from the task's team (model, eval, data)