Add Binary Search coding problems folder

[ramyabhat03]

I’d like to contribute by creating a new BinarySearch folder that will include coding problems based on the Binary Search pattern — one of the most fundamental and widely used techniques in problem-solving.

The folder will contain:

🔹 Pattern-based implementations (e.g., order-agnostic search, search in rotated sorted array, etc.)

🔹 Detailed explanations for each variation

🔹 Clean, modular, and well-commented Java code for clarity and educational value

This addition will fit perfectly under the Algorithms section and serve as a strong reference for interview preparation and DSA learning.

Kindly assign this issue to me so I can start working on it. 🙌
Thank you!

[ruheena-shaik]

Kindly please assign me this issue that I could work on it

[CreativeCD]

plz assign this to me as it is my first contribution to open source and i'm intrested in BinarySearch folder that will include coding problems based on the Binary Search pattern