Example asset and transform for async content streaming

[cehan-Chloe]

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Release Notes

Player streaming enhancement

1. Changes

• Added new chat-message asset in ReferenceAssetsPlugin as async streaming example
• Added generic function in AsyncNodePlugin to generate async asset transform

2. New functionality
   Instead of adding {async: true} in content, replace it with a special type of asset, eg. chat-message and write a transform function.

[cehan-Chloe]

/canary

[codecov]

Codecov Report

Attention: Patch coverage is 81.39535% with 16 lines in your changes missing coverage. Please review.

Project coverage is 89.72%. Comparing base (9864c7c) to head (7fc1607).
Report is 41 commits behind head on main.

Files with missing lines	Patch %	Lines
core/player/src/view/resolver/index.ts	33.33%	8 Missing ⚠️
plugins/async-node/core/src/transform.ts	87.50%	3 Missing ⚠️
...e-assets/core/src/assets/chat-message/transform.ts	70.00%	3 Missing ⚠️
plugins/reference-assets/core/src/assets/index.ts	0.00%	1 Missing ⚠️
plugins/reference-assets/core/src/plugin.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #575      +/-   ##
==========================================
- Coverage   89.75%   89.72%   -0.04%     
==========================================
  Files         331      334       +3     
  Lines       19840    19923      +83     
  Branches     1949     1956       +7     
==========================================
+ Hits        17808    17875      +67     
- Misses       2018     2034      +16     
  Partials       14       14              

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[KetanReddy]

Can we add some docs to the main site about how to author async assets?

[cehan-Chloe]

Can we add some docs to the main site about how to author async assets?

@KetanReddy ty for reviewing! i'm planning to have a separate pr for doc update including core, react, iOS and Android. this pr only contains change for core and react.

[KetanReddy]

Can we add some docs to the main site about how to author async assets?

@KetanReddy ty for reviewing! i'm planning to have a separate pr for doc update including core, react, iOS and Android. this pr only contains change for core and react.

What is the work remaining on the other platforms? I see there is an iOS PR open but from my understanding this should mostly be a core PR. Ideally we would merge in all those portions + docs in the same PR