Add scroll extension

[saschanaz]

1. Add new scroll methods to Element interface
2. Move scrollIntoView method to Element from HTMLElement
3. Enable scroll methods to receive a scroll option object

[msftclas]

Hi @saschanaz, I'm your friendly neighborhood Microsoft Pull Request Bot (You can call me MSBOT). Thanks for your contribution!
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The agreement was validated by Microsoft and real humans are currently evaluating your PR.

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[mhegazy]

👍

[mhegazy]

@saschanaz can you refresh the PR.

[msftclas]

Hi @saschanaz, I'm your friendly neighborhood Microsoft Pull Request Bot (You can call me MSBOT). Thanks for your contribution!
You've already signed the contribution license agreement. Thanks!

The agreement was validated by Microsoft and real humans are currently evaluating your PR.

TTYL, MSBOT;

[mhegazy]

thanks!