Swap the API packages

The new one is now built for the api jar and the old one is now internal.
It will slowly be moved around to sane places within the internal code. Most
of the features provided in the old "api" are addon specific features which
will generally rely on the main jar anyways. The new API will be specific
to compatibility features, such as blacklists, recipes, and value modification.

src/main/java/WayofTime/bloodmagic/apibutnotreally/soul/IDiscreteDemonWill.java

@@ -0,0 +1,40 @@
+package WayofTime.bloodmagic.apibutnotreally.soul;
+
+import net.minecraft.item.ItemStack;
+
+public interface IDiscreteDemonWill {
+    /**
+     * Obtains the amount of Will an ItemStack contains.
+     *
+     * @param soulStack - The stack to retrieve the Will from
+     * @return - The amount of Will an ItemStack contains
+     */
+    double getWill(ItemStack soulStack);
+
+    /**
+     * Drains the demonic will from the willStack. If all of the will is
+     * drained, the willStack will be removed. Will only drain in discrete
+     * amounts, determined by getDiscretization.
+     *
+     * @param willStack   - The ItemStack of the will
+     * @param drainAmount - The amount of Will to drain
+     * @return The amount of will drained.
+     */
+    double drainWill(ItemStack willStack, double drainAmount);
+
+    /**
+     * Gets the discrete number for this demonic will.
+     *
+     * @param willStack - The ItemStack of the will
+     * @return - The discrete number for the given stack.
+     */
+    double getDiscretization(ItemStack willStack);
+
+    /**
+     * Obtains the type of will this is.
+     *
+     * @param willStack - The ItemStack of the will
+     * @return - The type of will this is.
+     */
+    EnumDemonWillType getType(ItemStack willStack);
+}