Dispensers can Spawn Falling Blocks

This suggestion is as follows:  If a Dispenser becomes powered when it has a block item inside itself, and there is a Falling Block Entity in front of the Dispenser, the block item in the Dispenser is turned into a new Falling Block Entity, located above or in front of the pre-existing one.

The block within the new Falling Block Entity is given the same "facing" direction as the Dispenser has (if applicable), and the new entity has a modest amount of momentum away from the Dispenser.