Add with Clause for Enhanced Variable Management in Nested Structures

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Overview

This PR introduces the with clause to enhance the flexibility of variable management within nested structures. This feature allows for more granular control by merging user-specified variables with global variables.

Changes

• Documentation Updates:
  • Added a section on the with clause in README.md and README.es.md with examples.
• Example Updates:
  • Modified example/structure.yaml to include a sample usage of the with clause.
• Code Enhancements:
  • Updated generate.py to:
    • Parse and merge variables specified in the with clause.
    • Integrate the merged variables into the generation process seamlessly.

Justification

The with clause simplifies complex scenarios by enabling users to pass additional context-specific variables to nested structures without altering global variables. This improves code modularity and usability.

Impact

• Enhanced readability and flexibility in defining nested structures.
• Backward compatibility is maintained as the feature is additive and optional.
• Improved developer experience by reducing configuration overhead in complex projects.