Add Support for C++ Templates

[Shashankss1205]

• Description: A feature for generic programming, allowing functions and classes to operate with any data type.
• Graphing Strategy: Model as a :Template node, with relationships pointing to specific instantiations.

Implementation Steps

1. Modify the C++ Parser (.../languages/cpp.py)

   • Add a Tree-sitter query to identify template definitions.
   • Create a _find_templates method.
   • Return the results from parse under the key "templates".

2. Update the Generic Graph Builder (.../tools/graph_builder.py)

   • In create_schema(), add a uniqueness constraint for the :Template label.
   • In add_file_to_graph(), update item_mappings to include (file_data.get('templates', []), 'Template').
   • (Advanced) A separate step would be required to identify template instantiations and create relationships.

[github-actions]

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[san-rizz-777]

I would like to work on this issue!!Please assign me!!

[Shashankss1205]

Assigned!

[san-rizz-777]

@Shashankss1205 Made the pr ! Please let me know if any changes are needed!😁😁