Update TeamsInfo to support CloudAdapter

[johnataylor]

fixes #5685

[EricDahlvang]

nit: spacing looks odd before/after the param comments here

[EricDahlvang]

We might need to revisit this when we add support for create conversation from a skill. This will probably require audience.

[clearab]

I think the descriptions got mixed up - the description for activity is the channel ID, and channel ID has a fragment of "cancellation token." (in the code comments)

[johnataylor]

Thanks @clearab nice catch. That must have been there for ages - I updated the old functions description too.

[coveralls]

Pull Request Test Coverage Report for Build 254556

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 15 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.02%) to 76.168%

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Files with Coverage Reduction	New Missed Lines	%
/libraries/AdaptiveExpressions/BuiltinFunctions/GetNextViableTime.cs	1	93.94%
/libraries/Microsoft.Bot.Builder/Teams/TeamsInfo.cs	14	72.22%

Totals
Change from base Build 254530:	-0.02%
Covered Lines:	23056
Relevant Lines:	30270

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💛 - Coveralls

[mrivera-ms]

🕐

[mrivera-ms]