[User Model] Fixes

[shepherd-l]

Description

One Line Summary

• Updated troubleshooting section in migration guide with More than one file was found with OS independent path 'META-INF/kotlinx_coroutines_core.version'. Android build error.
• Updated EDM4U version from 1.2.169 to 1.2.177 in the OneSignal-Unity-SDK setup step and in the example app
• Updated included OneSignal-Android-SDK to 5.0.1
• Fixed sending VSAttribution data from the editor
• Added notifications permission button in example app for easier testing

Details

Motivation

Fixes VSA data not being sent and addresses More than one file was found with OS independent path 'META-INF/kotlinx_coroutines_core.version'. Android build error.

Testing

Manual testing

Tested OneSignal initialization, app build with Unity 2021.3.16f1 of the OneSignal example app on a emulated Pixel 4 with Android 12.

Affected code checklist

• Notifications
  • Display
  • Open
  • Push Processing
  • Confirm Deliveries
• Outcomes
• Sessions
• In-App Messaging
• REST API requests
• Public API changes

Checklist

Overview

• I have filled out all REQUIRED sections above
• PR does one thing
• Any Public API changes are explained in the PR details and conform to existing APIs

Testing

• I have included test coverage for these changes, or explained why they are not needed
• All automated tests pass, or I explained why that is not possible
• I have personally tested this on my device, or explained why that is not possible

Final pass

• Code is as readable as possible.
• I have reviewed this PR myself, ensuring it meets each checklist item

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This change is 

[jkasten2]

We also need to include these steps are part of the setup guide too in the README.md.

[jkasten2]

The title of the PR says "[Fix] Sending VSA data" but it does a lot more than that. Can we update this PR title?

This PR also does a lot of different things, in the future please split up PRs if they contain unrelated commits

[shepherd-l]

Will do, thanks for the feedback