Whitespace + general cleanup

By: Erik Broes <erikbroes@grum.nl>

paper-api/src/main/java/org/bukkit/block/BlockFace.java

@@ -55,33 +55,43 @@ public enum BlockFace {
     public int getModZ() {
         return modZ;
     }
-    
+
     public BlockFace getOppositeFace() {
         switch (this) {
         case NORTH:
             return BlockFace.SOUTH;
+
         case SOUTH:
             return BlockFace.NORTH;
+
         case EAST:
             return BlockFace.WEST;
+
         case WEST:
             return BlockFace.EAST;
+
         case UP:
             return BlockFace.DOWN;
+
         case DOWN:
             return BlockFace.UP;
+
         case NORTH_EAST:
             return BlockFace.SOUTH_WEST;
+
         case NORTH_WEST:
             return BlockFace.SOUTH_EAST;
+
         case SOUTH_EAST:
             return BlockFace.NORTH_WEST;
+
         case SOUTH_WEST:
             return BlockFace.NORTH_EAST;
+
         case SELF:
             return BlockFace.SELF;
         }
-        
+
         return BlockFace.SELF;
     }
 }