[Enhancement] GraSP as a Library

[zephyrzilla]

Summary

This PR restructures the GraSP framework to function as a proper Python library by organizing code into a structured package hierarchy and implementing a clean library interface. The changes enable users to import and use GraSP components programmatically while maintaining all existing functionality.

Explain the features implemented:

• Moved core framework code into grasp/ package directory
• Created proper package structure with __init__.py files
• Implemented library interface for programmatic access
• Updated all import paths to use the new package structure
• Fixed test suite to work with new structure
• Maintained backward compatibility with existing workflows

How to Test the feature

1. Install GraSP as a library:
   chmod +x setup_grasp_lib.sh
./setup_grasp_lib.sh
2. Execute example:

   import grasp 
   
   workflow = grasp.Workflow("examples/glaive_code_assistant")
   workflow.run(num_records=3) 

Checklist

• Lint fixes and unit testing done
• End to end task testing
• Documentation updated