[StyleCop] Fix all the warnings on Bot.Builder.Tests

[gasper-az]

Changes made:

• Add/ Remove trailing whitespace
• Add trailing comma
• Remove extra spaces

[coveralls]

Pull Request Test Coverage Report for Build 53294

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 76.121%

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Totals
Change from base Build 53133:	0.0%
Covered Lines:	4361
Relevant Lines:	5729

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💛 - Coveralls

[cleemullins]

No issues found in Microsoft.Bot.Builder.dll
No issues found in Microsoft.Bot.Builder.AI.Luis.dll
No issues found in Microsoft.Bot.Builder.AI.QnA.dll
No issues found in Microsoft.Bot.Builder.ApplicationInsights.dll
No issues found in Microsoft.Bot.Builder.Azure.dll
No issues found in Microsoft.Bot.Builder.Dialogs.dll
No issues found in Microsoft.Bot.Builder.TemplateManager.dll
No issues found in Microsoft.Bot.Configuration.dll
No issues found in Microsoft.Bot.Connector.dll
No issues found in Microsoft.Bot.Schema.dll