Add support for "expected dialog"
Add support for "expected dialog"

Loads dialogs and checks if any skills responds with one of the possible
dialogs.

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