Adding support for opened notifications in iOS

[Ashish-Nanda]

Description of changes:
Adding support for opened notifications in iOS

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov]

Codecov Report

Merging #5835 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #5835   +/-   ##
=======================================
  Coverage   73.75%   73.75%           
=======================================
  Files         204      204           
  Lines       11973    11973           
  Branches     2342     2254   -88     
=======================================
  Hits         8831     8831           
- Misses       2960     2980   +20     
+ Partials      182      162   -20     

Impacted Files	Coverage Δ
packages/auth/src/OAuth/OAuth.ts	49.64% <0.00%> (ø)
packages/core/src/Credentials.ts	31.48% <0.00%> (ø)
packages/analytics/src/Analytics.ts	64.81% <0.00%> (ø)
packages/datastore/src/sync/outbox.ts	25.00% <0.00%> (ø)
packages/datastore/src/storage/storage.ts	67.59% <0.00%> (ø)
packages/core/src/OAuthHelper/GoogleOAuth.ts	32.65% <0.00%> (ø)
packages/core/src/Util/Reachability.native.ts	37.50% <0.00%> (ø)
packages/xr/src/Providers/SumerianProvider.ts	47.55% <0.00%> (ø)
packages/core/src/OAuthHelper/FacebookOAuth.ts	35.55% <0.00%> (ø)
packages/datastore/src/sync/processors/sync.ts	17.33% <0.00%> (ø)
... and 5 more

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[amhinson]

Just tested and was able to receive onNotificationOpened callback both when the app is in the background as well as completely killed 👍

[sammartinez]

LGTM 🌮

[manueliglesias]

LGTM 👍

[github-actions]

This pull request has been automatically locked since there hasn't been any recent activity after it was closed. Please open a new issue for related bugs.

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