OptionOrd<A> class

Provides an ordering for Option<A> based on an existing ordering for A.

This is particularly useful when Option<A> values need to be sorted or otherwise ordered based on the encapsulated value.

Given an ordering for type A (provided by Ord<A>), the ordering for Option<A> is defined as follows:

• None is considered less than any Some<A> value.
• Two None values are considered equal.
• Two Some<A> values are compared based on their encapsulated A values.

Example usage:

final ordInt = IntOrd();
final ordOptionInt = OptionOrd(ordInt);
final result = ordOptionInt.compare(Some(3), Some(5)); // This will return a negative number
final isEqual = ordOptionInt.equals(None(), None());  // This will return true