added the cla: yes

label

nallwhy changed the title feat(dialog): add result to MdDialogClose directive feat(dialog): add result to MdDialogClose directive

MdDialog has MdDialogClose to make it easier to structure a dialog.
But as MdDialogClose doesn't return any value, it's imposibble to use MdDialogClose if you want to get any return value when MdDialog is close.
So `@Input('md-dialog-close')result` is added to MdDialogClose to solve it.

no breaking changes