feat(component-store): add tapResponse signature with observer object

[markostanimirovic]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/ngrx/platform/blob/master/CONTRIBUTING.md#commit
• Tests for the changes have been added (for bug fixes / features)
• Documentation has been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[ ] Bugfix
[x] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[ ] Other... Please describe:

What is the current behavior?

Closes #3739

What is the new behavior?

Another signature of the tapResponse operator is added. It accepts the observer object as an input argument. By using the new signature, we can also pass the finalize callback:

tapResponse({
  next: console.log, // required
  error: console.error, // required
  complete: () => console.log('complete'), // optional
  finalize: () => console.log('finalize'), // optional
})

Does this PR introduce a breaking change?

[ ] Yes
[x] No

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[timdeschryver]

🤘