Add start and end slot to card actions

[wnvko]

Is your feature request related to a problem? Please describe.

There is no way to put anything but buttons to the left part of the card actions, and icons/icon type buttons to the right part of the card actions. If I need to add avatar, or chip, or whatever else my design requires to the left or right side of the card actions this is not possible.

Describe the solution you'd like

Allow adding any component to the left and to the right side of the card action by mark a container with some predefined directives like this:

        <igx-card-actions>
            <div igx-start>
              <button igxButton igxRipple>First button</button>
              <button igxButton igxRipple>Second button</button>
            </div igx-start>
            <div igx-end>
              <button igxButton igxRipple>Last button</button>
            </div igx-end>
        </igx-card-actions>

Describe alternatives you've considered

I did not find a way to add any other components to left and right side of the card actions.