Mining Machines: Implementing ex_act()

Implemented ex_act() in both the ore redemption machine and the mining
vendor. Sparks were added as a feedback for any explosion that call
ex_act() on these machines.
To allow for the reconstruction of these devices, I have implemented
machine recepies and circuitboard definitions for these devices. I also added
R&D recipies for the circuitboards.
Offline and Open icons have been added for both objects.

Squashed all of my previous commits and fixed the leftover garbled code
from my original rebase.
Merge pull request #3644 from Kaezon/master

Drop contents on ex_act()