Emit SMSParseFailed event if parsing of incoming SMSs fail

[karolikl]

If an incoming SMS cannot be parsed as a single case report #44 or an aggregated case report #46:

• Look up data collector based on the phone number and persist the message together with name and ID of datacollector (into a dead letter store)
• Emit an TextMessageParsingFailed event

[Velcrow81]

Is it important to save the name of the datacollector? From what I understand, the name is not relevant for the content of the text message and the Id of the datacollector should be enough to identify the datacollector later if needed. Thoughts?

[Velcrow81]

Also, what if the datacollector is unknown and the parsing failes? Should we parhaps add a new event called SMSParseFailedForAnonymousDataCollector?

[karolikl]

The name is not needed as long as we have the Id, having it there will simply cause more work (with updating name etc). So feel free to drop it :)

About the new event, I think having a separate event is a good idea, but can we call it something else? Since we use TextMessageParsingFailed for the known data collectors, what about TextMessageParsingFailedAnonymous for example?