fix(timepicker): allowing better scroll on touchpads #6292 - 20.0

[ChronosSF]

Closes #6292

Additional information (check all that apply):

• Bug fix
• New functionality
• Documentation
• Demos
• CI/CD

Checklist:

• All relevant tags have been applied to this PR
• This PR includes unit tests covering all the new code (test guidelines)
• This PR includes API docs for newly added methods/properties (api docs guidelines)
• This PR includes feature/README.MD updates for the feature docs
• This PR includes general feature table updates in the root README.MD
• This PR includes CHANGELOG.MD updates for newly added functionality
• This PR contains breaking changes
• This PR includes ng update migrations for the breaking changes (migrations guidelines)
• This PR includes behavioral changes and the feature specification has been updated with them

[ChronosSF]

@kacheshmarova , could you please assign this to someone from Astrea for verification?

[kdinev]

@ChronosSF I believe the scrolling is still way too fast. Also is the same logic used in the year picker in the igx-date-picker? If yes, please test there also, and if not, refactor so the same logic is used.

[kdinev]

@ChronosSF Scrolling is much better now!