Fix sided hopping mode

When importing/exporting either the same or the opposite side
has to be used. Without this commit importing always got handled
on the wrong direction.
Do not simulate energy transfer

Some mods do always return 0 if the simulate flag is set to true.
Since Compact Machines checked whether simulate returned a value
greater than 0 to check whether energy can actually be transferred
before really transferring the energy, it was not possible to output
energy to some mods.
With this commit you should be able to use e.g. Mekanism cables
directly.

Remotely related to #19