Add tag s@script.to_json

Other than an unspecified type key and forced uppercase, this is a
pretty solid JSON conversion.

src/main/java/net/aufdemrand/denizen/objects/dScript.java

@@ -13,6 +13,7 @@
 import net.aufdemrand.denizen.utilities.DenizenAPI;
 import net.aufdemrand.denizen.utilities.debugging.dB;
 import net.aufdemrand.denizencore.utilities.YamlConfiguration;
+import org.json.JSONObject;
 
 public class dScript implements dObject {
 
@@ -450,6 +451,12 @@ else return new Element(TagManager.tag(attribute.getScriptEntry() == null ? null
             return new Element(getObjectType()).getAttribute(attribute.fulfill(1));
         }
 
+        if (attribute.startsWith("to_json")) {
+            JSONObject jsobj = new JSONObject(container.getConfigurationSection("").getMap());
+            jsobj.remove("TYPE");
+            return new Element(jsobj.toString()).getAttribute(attribute.fulfill(1));
+        }
+
         // Iterate through this object's properties' attributes
         for (Property property : PropertyParser.getProperties(this)) {
             String returned = property.getAttribute(attribute);