WADsplat

Blizzard's "Deposit Warband Items" lacks the ability to restrict itself to reagents or at least stackable items only.  The Warband Automated Deposit corrects that oversight.  When you open your bank a button will appear at the top of the screen.

Clicking it (or typing /wadsplatdeposit) will activate the addon.  All stackable items in your inventory that can be deposited to your warband and are already present in the warband will be added.  If you've already got a stack of 534 Shrouded Cloth and you've got 6 in your inventory, they're going in.  If you don't have any Shrouded Cloth in your warbank, they don't get touched.   It reports to the chat every stack that it transfers along with a summary.

That's about it.

My original goal was to have a button on the bank itself, but I use Baganator and could not find a way to crack the code to allow me to add to Baganator's frame, so top of the screen it is.

As of version 1.2, there is also an auto-deposit option that can be toggled by typing /wadsplat on or /wadsplat off.