Separate production and inverter try in main loop

[davegold24]

I ran into failure to pull data from inverters, due to failure to find consumption data. Since my inverter does not monitor consumption data, it isn't reporting it as expected. Modification is to separate production and inverter scraping into separate try/exception operations. Also added the word "meter" to the error for /stream/meter, since my envoy doesn't support that, and the error helps clarify where the failure is.

[MasterCATZ]

hmm that might even help with some of the weird data I was getting