DocXML updates

[JonathanFingold]

• State management classes
• Twilio adapter classes
• and others

[JonathanFingold]

@cleemullins you may want to add @gabog as I hit the Twilio adapter library.

[coveralls]

Pull Request Test Coverage Report for Build 75600

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 4 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.04%) to 80.409%

---

Files with Coverage Reduction	New Missed Lines	%
/libraries/Microsoft.Bot.Builder/ActivityHandler.cs	1	8.57%
/libraries/Microsoft.Bot.Builder/BotState.cs	3	20.65%

Totals
Change from base Build 75596:	-0.04%
Covered Lines:	3423
Relevant Lines:	4257

---

💛 - Coveralls

[fuselabs]

✔️ No Binary Compatibility issues for Microsoft.Bot.Builder.dll compared against version 4.3.1
✔️ No Binary Compatibility issues for Microsoft.Bot.Builder.AI.Luis.dll compared against version 4.3.1
✔️ No Binary Compatibility issues for Microsoft.Bot.Builder.AI.QnA.dll compared against version 4.3.1
✔️ No Binary Compatibility issues for Microsoft.Bot.Builder.ApplicationInsights.dll compared against version 4.3.1
✔️ No Binary Compatibility issues for Microsoft.Bot.Builder.Azure.dll compared against version 4.3.1
✔️ No Binary Compatibility issues for Microsoft.Bot.Builder.Dialogs.dll compared against version 4.3.1
✔️ No Binary Compatibility issues for Microsoft.Bot.Builder.TemplateManager.dll compared against version 4.3.1
✔️ No Binary Compatibility issues for Microsoft.Bot.Configuration.dll compared against version 4.3.1
✔️ No Binary Compatibility issues for Microsoft.Bot.Connector.dll compared against version 4.3.1
✔️ No Binary Compatibility issues for Microsoft.Bot.Schema.dll compared against version 4.3.1