Add AppInsights package into build publish step

[cleemullins]

Add the new -appinsights package into the build process so the NPM publishes to MyGet.

Fixes #674

[coveralls]

Pull Request Test Coverage Report for Build 2400

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 2 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-0.06%) to 82.198%

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Files with Coverage Reduction	New Missed Lines	%
libraries/botframework-config/src/botConfigurationBase.ts	2	85.59%

Totals
Change from base Build 2395:	-0.06%
Covered Lines:	2703
Relevant Lines:	3165

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💛 - Coveralls