feat(SplitButton): A button with default and alternative action

[NgYueHong]

Feature Description

It would be great to have split button feature that enable us to select the button for alternative behavior.

Use Case

This kind of button can be used at many places such as save form and user can select different kind of action to be executed after saving the form.

[angular-robot]

Just a heads up that we kicked off a community voting process for your feature request. There are 20 days until the voting process ends.

Find more details about Angular's feature request process in our documentation.

[angular-robot]

Thank you for submitting your feature request! Looks like during the polling process it didn't collect a sufficient number of votes to move to the next stage.

We want to keep Angular rich and ergonomic and at the same time be mindful about its scope and learning journey. If you think your request could live outside Angular's scope, we'd encourage you to collaborate with the community on publishing it as an open source package.

You can find more details about the feature request process in our documentation.