feat(tutorial): add plot_connect_networks.ipynb

[Myrausman]

• Created a tutorial-style Jupyter notebook demonstrating communication between two HNN networks (Network A and Network B).
• Implemented a streamlined workflow using tempfile to save and read Network A's spike data, enhancing efficiency and reducing manual handling.
• Structured the notebook with step-by-step explanations, including conceptual overviews and code cells.
• Optimized code by consolidating drive parameters into dictionaries and simplifying spike data processing with numpy arrays.
• Added visualization of spike rasters for both networks and verification of the spike train drive setup.