Fix anomalous consumption for emit/retain storage
Fix anomalous consumption for emit/retain storage

Techs which store energy using the emit/retain method (emit all energy
stored, claim back as much as possible) had incorrect tech loads on
their endpoints.

Instead we now set their initial tech load equal to the amount emitted
(produced); as a result the energy "claimed back" -- already stored in
the tech -- is not logged as new consumption.

quintel/etmoses,quintel/etmoses,quintel/etmoses,quintel/etmoses,quintel/etmoses