Update the VIFEs for case (VIF = FB) to newer standard

[alvskar]

• labels for all the things
• ReactivePower was mis-scaled, probably due to the confusion with the coding being 10(nn-3), but the unit there being kVAR, so *1000
• E011 01nn doesn't have an hour component
• Power (GJ) was mis-scaled also. 1 GJ = 10^9 J. Range 0.1GJ/h to 1GJ/h
• I've removed the American Gallons entry I've previously added... that was originally added from the 90's standard, which did process certain non-metric units in that table. But in newer standards, non-metric units got moved off to some orthogonal VIFEs that are a bit out of scope now. For VIF = FB, this block is mostly Reserved, except for Phase I-U. I guess a question whether wanting to support older or newer meters?
• added test with an electric meter payload, don't know if that was quite the right place

[maebli]

Hey! Yes it would be good to support the newst version. Or even better in the long run to chose with feature flags