Allow for better fluid handling

[GuffeTheGreat]

Right now is it very clunky to input and output of a machine, because you essentially have to make a separate tank and pump the fluid in/out of that tank.

Ideas for fixing

1. Allow players to be able to right-click the your machine with buckets and cells to fill/empty them.
2. Have the interface work the same as in Gregtech machine where you right-click the fluid slots to input/output fluid from your fluid containers.

:D