Fallback to default STT if loading fails
Fallback to default STT if loading fails

If a STT backend fails to load log the exception and fallback to the
MycroftSTT.

forslund/mycroft-core,MycroftAI/mycroft-core,Dark5ide/mycroft-core,MycroftAI/mycroft-core,forslund/mycroft-core,Dark5ide/mycroft-core