Add BinToDec usage example for SplashKit utilities

[Mdanial01]

Description

This PR adds a new SplashKit utility usage example demonstrating how to convert a
binary string into its decimal representation using the built-in bin_to_dec (Python/C++)
and BinToDec (C#) functions. It includes multi-language examples for Python, C++,
and C# (both OOP and top-level). The example is minimal, clear, and demonstrates the
function in the least number of lines possible.

Usefulness: A SplashKit user may want to convert binary data (e.g., bitmaps, memory flags,
or binary protocol data) into decimal form for calculations, visualization, or debugging.

Type of change

• New feature (non-breaking change which adds functionality)

How Has This Been Tested?

• Verified output in Python using SplashKit
• Verified output in C++ using SplashKit
• Verified output in C# (OOP and top-level) using SplashKit

Testing Checklist

• Tested in latest Chrome
• Tested in latest Firefox
• npm run build
• npm run preview

Checklist

If involving code

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings

Folders and Files Added/Modified

• Added:
  • public/usage-examples/utilities/bin_to_dec-1-example.py
  • public/usage-examples/utilities/bin_to_dec-1-example.cpp
  • public/usage-examples/utilities/bin_to_dec-1-example-oop.cs
  • public/usage-examples/utilities/bin_to_dec-1-example-top-level.cs
  • public/usage-examples/utilities/bin_to_dec-1-example.txt

Additional Notes

This example demonstrates the use of SplashKit’s bin_to_dec / BinToDec functions across
multiple languages, providing a consistent, minimal, and easy-to-follow example for developers.

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