Implemented Doubling Money scammer bots at GE

Converted some classes to Kotlin
Fixed a trading bug when you removed an item, the modified slot would flash on the wrong side

Server/src/test/resources/test.conf

@@ -46,6 +46,7 @@ skillcape_perks = false
 increased_door_time = false
 enable_botting = false
 max_adv_bots = 100
+enable_doubling_money_scammers = true
 wild_pvp_enabled = false
 jad_practice_enabled = false
 personalized_shops = false
@@ -77,4 +78,4 @@ object_parser_path = "@data/ObjectParser.xml"
 #path logs are written to
 logs_path = "@data/logs"
 bot_data = "@data/botdata"
-eco_data = "@data/eco"
+eco_data = "@data/eco"