feat(aws-amplify-angular/auth): Add federated sign in for social providers

[OrozcoJonathan]

Issue #, if available:
#2456
#1488
#3537

Description of changes:
This change adds a federated sign in component to the aws-amplify-angular library

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

[sammartinez]

@OrozcoJonathan Can you look into resolving the conflicts please?

[iartemiev]

Hey @OrozcoJonathan, I've resolved the conflicts and got the tests to pass. Will be further testing and reviewing this today.

[lgtm-com]

This pull request introduces 6 alerts when merging 5c431d1 into ce7ca96 - view on LGTM.com

new alerts:

• 3 for Useless assignment to local variable
• 3 for Unused variable, import, function or class

[codecov]

Codecov Report

Merging #2900 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2900   +/-   ##
=======================================
  Coverage   76.38%   76.38%           
=======================================
  Files         175      175           
  Lines        9672     9672           
  Branches     1982     1982           
=======================================
  Hits         7388     7388           
  Misses       2137     2137           
  Partials      147      147

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[lgtm-com]

This pull request introduces 1 alert when merging a2a4c34 into ce7ca96 - view on LGTM.com

new alerts:

• 1 for Unused variable, import, function or class

[elorzafe]

@OrozcoJonathan thanks for this PR, we pull this changes forward into new UI components libraries. For more information on how to use federated sign in with social providers you can find it here

[tvb]

@elorzafe it states federated login by Identity Pools (IDP) does this mean it won’t work with User Pools Federated Logins?

[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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