Netatmo: Fix for defect #3891 and #3995

[robnielsen]

This is a fix the defects:

#3891, Netatmo sends back lower case device and module id's.
#3995, The binding was reporting different wifi and rf values than Netatmo is reporting.

[robnielsen]

@clinique, don't know if this can happen with the OH2 version of the Netatmo binding or not.

[clinique]

@robnielsen : great chances that we'd face the same behaviour on v2. This may not appear with the auto-discovery but for users declared devices and modules.

[robnielsen]

@lolodomo can you please review my changes?

[lolodomo]

@robnielsen
New code for RF status and WiFi signal looks good except at line 568 where I would have used <= rather than <

[robnielsen]

Thanks @lolodomo for catching the < vs <=. I fixed it and squashed the commit.

[teichsta]

@clinique will you take care of double checking this issue against the OH2 binding, please?

[clinique]

Sure - doing right now - and yes, confirmed. v2 of the driver is subject to #3891 also.

[lolodomo]

Please include this patch in 1.8.2.

[robnielsen]

@teichsta, do you want this merged to the 1.8 branch? If so it will need a new PR due to changes for the Welcome camera. I'll also include #4016 and #4028 since they are pretty much all related.