Vivox Unity SDK 16.5.0

WebGL now has limited support for voice and text chat in a single channel.

Moved the `IVivoxTokenProvider` validation step from Vivox SDK initialization to the Login operation.

Made the error reported by the `VivoxParticipantTap` a bit clearer when the 'Channel Name' or the 'Participant Name' parameter are unknown or not set.

Resolved an issue where attempting to rejoin a channel was not possible after a JoinChannelAsync operation experienced a TimeoutException.

Resolved an issue where `CancellationTokenSource` instances used internally were not being disposed of when no longer needed, occasionally resulting in unexpected behavior.

Fixed a bug where allocated memory that was supposed to be aligned was not actually aligned.

Fixed a bug where the "Channel Name" field for Audio Taps would reset to empty when an unexpected value was entered.

Improved the overall experience of interacting with the Audio Tap inspector by registering the tap only after all fields are fully edited, instead of on every character entry.

Fixed a bug that would prevent the `VivoxParticipant.ParticipantMuteStateChanged` event from firing.

Vivox Safe Voice consent endpoints have been added to the VivoxService, allowing for collection of consent from users for Vivox Safe Voice recordings.

Some issues are still lingering with automated credential pulling on Unity version 2020 and 2021.