feat: support run ngOnChanges hook for change bingins (#348)

[ntvsx193]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/ngneat/spectator/blob/master/CONTRIBUTING.md#commit
• Tests for the changes have been added (for bug fixes / features)
• (not need) Docs have 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?

When setting input bingins via createComponentFactory(TestComponent)({ props: {} }) or run spectator.setInput(...), hook ngOnChanges is not called.

Issue Number: #348

What is the new behavior?

The hook ngOnChanges fired on first install input's and update via spectator.setInput(), spectator.setHostInput()

Does this PR introduce a breaking change?

[x] Yes
[ ] No

Now, internal setProps update value of instance only if values not equals. It is affected setInput, setHostInput.

[NetanelBasal]

Thanks. I will check it when I have time. Can you please update the docs and describe the added behavior?

[ntvsx193]

done, doc updated.

[NetanelBasal]

LGTM. I'm wondering if this change can affect an existing code somehow.

[ntvsx193]

@NetanelBasal any progress?

[NetanelBasal]

I'm wondering if this change can affect an existing code somehow

[ntvsx193]

I'm notice you in code review. Are you check this?