Add imbuement altar

- Adds imbuement altar block and associated tile entity
- Adds basic functionality for imbuing wizard armour (other stuff to be decided)
- Incorporates imbuement altar into glowing overlay model event (this could do with being tidied up and generalised)
- Adds a TESR for the ray effect (based on some of the oldest code in the entire mod, which definitely needs improving!)
- Adds a simple sound effect for the imbuement process, needs upgrading to a ticked sound later

src/main/java/electroblob/wizardry/registry/WizardryItems.java

@@ -436,6 +436,7 @@ public final class WizardryItems {
 		registerItemBlock(registry, WizardryBlocks.dark_oak_lectern);
 
 		registerItemBlock(registry, WizardryBlocks.receptacle);
+		registerItemBlock(registry, WizardryBlocks.imbuement_altar);
 
 		// Items
 
@@ -708,6 +709,7 @@ public final class WizardryItems {
 					((TileEntityReceptacle)tileEntity).setElement(Element.values()[stack.getMetadata()]);
 					stack.shrink(1);
 					world.checkLight(pos);
+					// TESTME: Do we need this?
 					world.notifyBlockUpdate(pos, source.getBlockState(), source.getBlockState(), 3);
 					return stack;
 				}