A convention that sets whether to ignore extra elements encountered during deserialization.
Inheritance: ConventionBase, IClassMapConvention
        public void TestApply(bool value)
        {
            var subject = new IgnoreExtraElementsConvention(value);
            var classMap = new BsonClassMap<TestClass>();

            subject.Apply(classMap);

            Assert.Equal(value, classMap.IgnoreExtraElements);
        }