Improve the action words recognition

[davquar]

See:

• https://github.com/MycroftAI/mycroft-core/blob/dev/test/unittests/util/test_parse.py
• https://github.com/MycroftAI/lingua-franca/blob/master/lingua_franca/parse.py

lingua_franca match_one/fuzzy_match

E.g. when the user says something containing "stop" or any action word, but there is no exact match, we can ask the user for confirmation.

[davquar]

Even if the user say something that "naturally" should mean "stop" (e.g. stop stop I made a mistake), the confidence for the match with the "stop" string is too low. We should find another way

• maybe a sort of distance measure?
• or, to simplify, just see if the utterance contains "stop"