Riizade/config file (#520)

* added POJO + yaml file

* made config members public

* switched to yaml

* modified files to use YamlConfig over ServerConstants

* removed constants from ServerConstants

* removed unused imports

* removed unused import

* removed world ini

* removed now unused .ini files

* fixed docker-launch.sh

* added jackson dependency JARs

* fixed errors

* removed unused server config values, added world defaults

* don't use env variables for docker

* fixed package imports/specifiers for js files

scripts/npc/9000017.js

@@ -51,7 +51,7 @@ function action(mode, type, selection) {
     }
 
     if (status == 0) {
-        if (!Packages.constants.ServerConstants.USE_ENABLE_CUSTOM_NPC_SCRIPT) {
+        if (!Packages.config.YamlConfig.config.server.USE_ENABLE_CUSTOM_NPC_SCRIPT) {
             cm.sendOk("Hi, I'm #b#p" + cm.getNpc() + "##k.");
             cm.dispose();
             return;