Let `QueryByExampleRedisExecutor` implement `ListQueryByExampleExecutor`

[sergey-morenets]

Hi

There's special "Query By Example" section in Spring Data Redis reference documentation: https://docs.spring.io/spring-data/redis/reference/redis/redis-repositories/query-by-example.html

However it mentions QueryByExampleExecutor type only:

interface PersonRepository extends QueryByExampleExecutor<Person> {
}

But Spring Data Redis 3.0 introduced new type ListQueryByExampleExecutor which is more convenient for list operations. However it's not mentioned in this section.

[mp911de]

QueryByExampleRedisExecutor doesn't implement ListQueryByExampleExecutor in the first place, so we need to adopt the implementation first.