[Feature Request] Natural comparison matchers isGreaterThan isGreaterOrEqual isLessOrEqual isLessThan to invoke compareTo

[christianhujer]

It would be nice to have comparison matchers that could be used like this:

@Test
fun comparisonExample() {
    val duration = getDurationFromSomewhare()
    assertThat(duration, isLessThan(Duration.ofSeconds(2)))
}