* POC grid layout of gague.

* added a grid property that can be used to auto size the charts within a panel.

* fill the grid

* fix lint

* change default for stat panel

* avoid empty cells

* Moved to absolute positioning

* Fixed spacing

* Another fix

* Improve layout algorithm

* VizRepeater: Reverted back to so this is auto behavior for some panels

Co-authored-by: Ryan McKinley <ryantxu@gmail.com>
Co-authored-by: Torkel Ödegaard <torkel@grafana.com>