[donotmerge] workaround slow connections when discovering bridge ip

[ghost]

I found this back while cleaning my mess, I never had any feedback wether it helped or not solve https://github.com/mpolednik/script.kodi.hue.ambilight/issues/37 or https://github.com/mpolednik/script.kodi.hue.ambilight/issues/56 .
This was done a few weeks ago, and my google skills lead me to think this could improve the situation. I can't say it works for sure, but it works fine when finding bridge's ip on my setups.

[mpolednik]

Something like that could be generalized into retry logic; similar thing is used when using local pnp. Although I'm afraid most of the connection failures are due to async logic of the menu now.