Request: Multilingual Config Option

[JarbasAl]

provide the user with options to enable secondary languages

• add new langs to mycroft.conf
• [optional] validate / constrain STT options to models that support all user langs
• [optional] assign a different wake word to each language
• [optional] enable a audio lang detection plugin

provide user with option to enable bidirectional translation

• for all langs except main lang (intent handling will always happen in main lang)
• for all langs except main + secondary langs (handle requests in unplanned langs, usually via chat)