* IC2 rework to avoid a coremod or @Optional
Updated IC2 dependency
Refactored IC2 itemcharging to use an IBackupElectricManager.
Allows charging any ae powered item by using an IBackupElectricManager
instead of having to implement IElectricItem and stripping it by some
sort.
Updated IAEItemPowerStorage to use Actionable for an easier handling
with power APIs supporting a simulation.
Refactored EU P2P to avoid method stripping
Use a modified internal BasicSinkSource instead of implementing
IEnergySource and IEnergySink directly on the tunnel.
Removed the superfluous EU P2P layers.
* Removed internalBattery due to being too complex
* Creative Energy Cell is not a chargeable item
Moved the cap injection to a method, allows them to be configurable.
This is not possible for Forge Energy as it is injected before even the
configuration are lodaed, thus violating their own capability contract
to use the method injection to explicitly make it configurable.
Updated the ratio key for forge energy to "ForgeEnergy" without a space
yueh