* Revert "[Dialogs] Migrate to Material Motion. (#2481)"
This reverts commit 211ca772ea0456b56e522c0c67bd44312ddfe4d1.
* Bump animator back to 2.5.0
* Pull in develop project file
* Remove test for MMotion
This change implements the Material Motion spec for the Dialogs component using the Motion Interchange, Animator, and Transitioning APIs.
Many of the existing APIs will be able to be deprecated or made private in the future, though there is considerable existing downstream client usage of many of these APIs so this will need to be done with some care.
The client migration path for this change will look something like this on average:
```objc
// Old API
_transitionController = [[MDCDialogTransitionController alloc] init];
self.transitioningDelegate = _transitionController;
self.modalPresentationStyle = UIModalPresentationCustom;
// New API
self.mdm_transitionController.transition = [[MDCDialogTransition alloc] init];
```
* Replace MDC all icons
* Update border
* Replace MDCActionExtension icon with new logo
* Update all headers to be white on black
* Make Catalog greyscale to match Material’s style.
* Fix collection tile
* Update all headers to be white on black
* Make Catalog greyscale to match Material’s style.
* Fix collection tile
* WIP: Updating TabBar example to use black/green theme.
* WIP: Monochoroming all examples.
* Switch MDC Catalog to a black and white theme (#1355)
* Replace MDC all icons
* Update border
* Replace MDCActionExtension icon with new logo
* Update all headers to be white on black
* Make Catalog greyscale to match Material’s style.
* Fix collection tile
* Update all headers to be white on black
* Make Catalog greyscale to match Material’s style.
* Fix collection tile
* Fix floats
* Make Catalog greyscale to match Material’s style.
* More black and whiting
* WIP: Snackbar and global style
* Simplify snack bar examples.
* Page control
