Bots in Shared Channel Support P1 - new Events and APIs

[tracyboehrer]

This is the P1 stage for Bot support in Shared Channel. Goal: Bot is going to support shared channel specific functionalities to enhance the user experience.

Requirements:

new APIs: getSharedTeams for a shared channel getAllowedMembers for a shared channel selected team New event support: Share/Unshare a team with shared channel. Host team need to get event. Related SDK update

https://domoreexp.visualstudio.com/MSTeams/_workitems/edit/2406982