Add new handler for anonymous query link invoke

[daseong-ms]

Fixes #6525

Description

This PR adds a new invoke handler for the invoke name composeExtension/anonymousQueryLink.
This invoke will get triggered when an user pastes a link for an app that has opted in to the zero install link unfurling feature. The interface is identical to existing handler for composeExtension/queryLink, but the user sensitive information will be anonymized for anonymousQueryLink.

Specific Changes

• Add new invoke handler for composeExtension/anonymousQueryLink

Testing

UT + manual E2E testing

[coveralls]

Pull Request Test Coverage Report for Build 325782

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 38 unchanged lines in 4 files lost coverage.
• Overall coverage decreased (-0.04%) to 79.068%

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Files with Coverage Reduction	New Missed Lines	%
/libraries/Microsoft.Bot.Connector.Streaming/Application/StreamingTransportClient.cs	2	75.44%
/libraries/Microsoft.Bot.Connector.Streaming/Transport/StreamingTransport.cs	3	88.24%
/libraries/Microsoft.Bot.Connector.Streaming/Application/TimerAwaitable.cs	7	68.25%
/libraries/Microsoft.Bot.Builder/Teams/TeamsActivityHandler.cs	26	76.74%

Totals
Change from base Build 325220:	-0.04%
Covered Lines:	25580
Relevant Lines:	32352

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💛 - Coveralls

[BruceHaley]

✔️ No Binary Compatibility issues for Microsoft.Bot.Builder.dll