Fix S3875 FP: Do not raise an issue when implementing IEqualityOperators interface

[csaba-sagi-sonarsource]

Description

FP for S3875 (DotNotOverloadOperatorEqual).

When implementing IEqualityOperators interface the rule should not raise.

Repro steps

    class MyClass : IEqualityOperators<MyClass, MyClass, MyClass>
    {
        public static MyClass operator ==(MyClass? left, MyClass? right) => new MyClass(); // Noncompliant FP (implementing IEqualityOperators interface require == operator overload)
        
        public static MyClass operator !=(MyClass? left, MyClass? right) => new MyClass();
    }

Expected behavior

The issue should not be raised in this case.

Actual behavior

An issue is raised.