Add check LTE state update script

[eworm-de]

Just took a very short look... Interesting indeed. But it can cause a lot of extra traffic on your broadband link, no?

[bubenkoff]

yes it does indeed, maybe you'd suggest parameter tuning for the speed-test tool, to make it more efficient traffic-wise but still be effective?

[bubenkoff]

@eworm-de made 5s test duration + ability to disable the btest speed by having an empty host