Add some options to control "chattiness" of the plugin

[jumper047]

I added two options to your plugin:

• Skip acknowledge dialogue completely (I believe it is have not too much of useful information, because just after it another dialog started which actually duplicates information from first one. In fact, I'd suggest to get rid of it completely). Option disabled by default.
• Skip confirmation dialogue in actions for certain entities. Usecase: control lights in the same room as Mycroft. I don't need additional confirmation that lights are turned on if they are turned on.

Settings file example with new params:

{
    "verbose": false,
    "silent_entities": [
        "hallway lamp"
    ],
    "__mycroft_skill_firstrun": false,
    "connected": true
}

Fixes #34

[jumper047]

Makes sense, thank you for feedback! Now it will be phrase or log entry. BTW, I changed and force-pushed commits, is it ok or is it better to add new commits with fixes?

[mikejgray]

Makes sense, thank you for feedback! Now it will be phrase or log entry. BTW, I changed and force-pushed commits, is it ok or is it better to add new commits with fixes?

Generally, I prefer new commits, as it makes it more clear what the history of the PR was. We squash commits on merge so there's no need to force-push anything