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/9201101.js

@@ -4,7 +4,7 @@
  */
  
 function start() {
-    if (Packages.constants.ServerConstants.USE_ENABLE_CUSTOM_NPC_SCRIPT) {
+    if (Packages.config.YamlConfig.config.server.USE_ENABLE_CUSTOM_NPC_SCRIPT) {
         cm.openShopNPC(9201101);
     } else {
         //cm.sendOk("The patrol in New Leaf City is always ready. No creatures are able to break through to the city.");