Dialogflow integration

[coveralls]

Pull Request Test Coverage Report for Build 155

• 17 of 17 (100.0%) changed or added relevant lines in 5 files are covered.
• 2 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.4%) to 99.601%

---

Files with Coverage Reduction	New Missed Lines	%
src/commands/calendar/response.ts	1	80.0%
src/commands/calendar/helper.ts	1	90.0%
<!--	Total:	2		-->

Totals
Change from base Build 160:	-0.4%
Covered Lines:	642
Relevant Lines:	644

---

💛 - Coveralls