ot::Time::operator<() const method

TRUE This `Time` instance is strictly before @p aOther. FALSE This `Time` instance is not strictly before @p aOther.

The comparison operators correctly take into account the wrapping of `Time` numeric value. For a given `Time` instance `t0`, any `Time` instance `t` where `(t - t0)` is less than half the range of `uint32_t` type is considered to be after `t0`, otherwise it is considered to be before 't0' (or equal to it). As an example to illustrate this model we can use clock hours: If we are at hour 12, hours 1 to 5 are considered to be after 12, and hours 6 to 11 are considered to be before 12.