Improve/Update Adaptive Card integration

[EricDahlvang]

Issue

Describe the issue you are addressing

Adaptive Cards provide a rich UI packed with features enabling awesome functionality for bots (and more) on a variety platforms and interfaces. The Bot Framework sdk samples use Adaptive Cards extensively: https://github.com/microsoft/BotBuilder-Samples/search?q=adaptivecards Developers using the Bot Framework would benefit from libraries with methods simplifying the use of Adaptive Cards.

Proposed change

Describe the proposed solution

Add a libraries with helper methods specific to the different channels and their integration of Adaptive Cards.

i.e. Microsoft.Bot.Builder.AdaptiveCards (or something)

Component Impact

Describe which components need to be updated

SDK helper methods for Teams:
Remove AdaptiveCard dependency from Teams packages

SDK Dialog Prompts:
Add Experimental AdaptiveCardPrompt Sample

Teams and other channel connector services (need update):
BotFramework-Services

Customer Impact

Describe the impact on customers

Making it easier for developers to integrate Adaptive Cards into their bots, resulting in an improved experience for users.

Tracking Status

Dotnet SDK

• PR
• Merged

Javascript SDK

• PR
• Merged

Java SDK

• PR
• Merged

Python SDK

• PR
• Merged

Samples

• PR
• Merged

Docs

• PR
• Merged

Tools

• PR
• Merged

Emulator

• [ X] PR
• [ X] Merged

WebChat

• [ X] PR
• [ X] Merged

[dcr]

[v-kydela]

Related: BotBuilderCommunity/botbuilder-community-dotnet#137

[EricDahlvang]

Related: #5293

[EricDahlvang]

Related: microsoft/botbuilder-dotnet#2370

[EricDahlvang]

Related: microsoft/botbuilder-dotnet#614

[EricDahlvang]

Related: #5396

[cleemullins]

@tomlm, we need to define success for this. Can you assist with that?

[cleemullins]

Closing due to inactivity.