[DistributedAuthoritySample] MTT-8880 / MTT-8881 Vivox text and proximity voice chat integration

[gregk-unity]

Description

For the SocialHub (DistributedAuthoritySample) project, this PR includes the Vivox text chat and the proximity voice chat integration.

Tools that were added:

• Runtime Netstat Monitor
• Network Simulator (create artificial lags)
• Upated MPPM to 1.3.0-pre.1 which includes Playmode Scenario

Issue Number(s)

• MTT-8880 [DA Sample] Implementing Text Chat functionality
• MTT-8881 [DA Sample] Proximity-based Voice chat integration

Contribution checklist

• Tests have been added for the project and/or any internal package
• Release notes have been added to the project changelog file
• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• JIRA ticket ID is in the PR title or at least one commit message
• Include the ticket ID number within the body message of the PR to create a hyperlink

[unity-cla-assistant]

All committers have signed the CLA.

[Elfi0Kuhndorf]

When connecting to the HubScene I get the following error:
System.InvalidOperationException: Unable to call VivoxService.Instance.Set3DPosition because you are not currently in any channels.VivoxService.Instance.JoinGroupChannelAsync|JoinEchoChannelAsync|JoinPositionalChannelAsync must be called first.

Also the disabling of the chat lies currently on the "?" for my keyboard. Can the key be changed?

[gregk-unity]

@Elfi0Kuhndorf, I have fixed the exception popping up. it was due to player not being in channel yet for the frames it tried to update position. added a 3 seconds delay before updating the position.