Add onAction event to the TileLayout

[simonssspirit]

Add onAction event to the TileLayout

This is needed as the developer may need to update the content of the tile when the user is dragging or resizing.

For example, if there is a Chart inside it, we need to update the Chart to take the new dimensions of the tile.

[simonssspirit]

We can add an end parameter to know when the user has stopped the action

[simonssspirit]

requested again in 1511731

[Phibee]

Looking for this as well @simonssspirit . callback for what item was dragged or resized. coz we have as well Charts(HighCharts) inside not automatically resizing.

[davidkhierl]

This is much needed! Looking forward for this to be added.

[silviyaboteva]

Requested again in: 1533806

[vveesseelliinnaa]

Requested again in Ticket ID: 1569882