Add PrimeNumberUtils with isPrime and getPrimesUpTo methods

[Naveenkumarsuk]

Summary

Added PrimeNumberUtils class in the math/ folder.

What It Does

• Checks if a number is prime
• Returns a list of all prime numbers up to a given value
• Optimized with Math.sqrt() and skips even numbers

Sample Output

This utility is helpful for math learners and coding interview prep.
Let me know if you'd like to see test cases too!

[alxkm]

Each algorithm should be in a separate branch.

And it looks like they are all already in this repository.

Prime numbers checker located here: https://github.com/TheAlgorithms/Java/blob/master/src/main/java/com/thealgorithms/maths/Prime/PrimeCheck.java