Types for binding static text responses to topics

[Manthan Dave]

This will allow people to have a static responses set for topcis like help, hello etc.

Currently, I'm imagining this to be a wrapper around the skill class, similar to how SingleLineMessage and MultiLineMessage classes work.

Implementation might look like this:

var staticSkill = new StaticResponseSkill('help', 'I can help you with many things like booking an appointment, checking mail etc');
bot.addSkill(staticSkill);