Certain hotkey functions for core client

[dvsmasta]

I would love it if you would add some of the basic hotkey functions to the core client that all custom clients have.

Such as move all of the same item when shift right clicking. Empty all of same item to ground. Would sure make filling and emptying ore smelters/etc alot better for us poor saps who cannot use custom clients due to non-programmable shader issue.

[shubla]

I dont think its worth implementing lot time to default client because currently most people are still going to use custom ones.

[LadyV]

I for one want default client to be further improved. I use it.