Add config option to multiply EMC transmutation energy cost

Fixes #20.

src/main/java/gripe/_90/appliede/AppliedEConfig.java

@@ -13,13 +13,17 @@ public class AppliedEConfig {
     }
 
     private final ForgeConfigSpec.DoubleValue moduleEnergyUsage;
+    private final ForgeConfigSpec.DoubleValue transmutationPowerMultiplier;
     private final ForgeConfigSpec.IntValue emcPerByte;
     private final ForgeConfigSpec.BooleanValue terminalExtractFromOwnEmcOnly;
     private final ForgeConfigSpec.IntValue syncThrottleInterval;
 
     private AppliedEConfig(ForgeConfigSpec.Builder builder) {
         moduleEnergyUsage = builder.comment("The amount of AE energy per tick used by the ME Transmutation Module.")
                 .defineInRange("moduleEnergyUsage", 25.0, 0, Double.MAX_VALUE);
+        transmutationPowerMultiplier = builder.comment(
+                        "The amount of AE energy used to transmute 1 EMC through the ME Transmutation Module.")
+                .defineInRange("transmutationPowerMultiplier", 1.0, 0, Double.MAX_VALUE);
         emcPerByte = builder.comment(
                         "The number of EMC units (of any tier) per byte as used in AE2 auto-crafting.",
                         "It is not recommended to set this very low as this will require unreasonably large",
@@ -39,6 +43,10 @@ public double getModuleEnergyUsage() {
         return moduleEnergyUsage.get();
     }
 
+    public double getTransmutationPowerMultiplier() {
+        return transmutationPowerMultiplier.get();
+    }
+
     public int getEmcPerByte() {
         return emcPerByte.get();
     }

src/main/java/gripe/_90/appliede/me/service/EMCStorage.java

@@ -322,7 +322,8 @@ private List<IKnowledgeProvider> getProvidersForExtraction(IActionSource source)
 
     private long getAmountAfterPowerExpenditure(BigInteger maxEmc, BigInteger itemEmc) {
         var energyService = service.getGrid().getEnergyService();
-        var multiplier = BigDecimal.valueOf(PowerMultiplier.CONFIG.multiplier);
+        var multiplier = BigDecimal.valueOf(PowerMultiplier.CONFIG.multiplier)
+                .multiply(BigDecimal.valueOf(AppliedEConfig.CONFIG.getTransmutationPowerMultiplier()));
         var toExpend = new BigDecimal(maxEmc).multiply(multiplier).min(BigDecimal.valueOf(Double.MAX_VALUE));
 
         var available = energyService.extractAEPower(toExpend.doubleValue(), Actionable.SIMULATE, PowerMultiplier.ONE);