feat(eco): add usertoken parameter

Author: dgibbs64

lgsm/config-default/config-lgsm/ecoserver/_default.cfg

@@ -8,8 +8,11 @@
 
 #### Game Server Settings ####
 
+## Predefined Parameters | https://docs.linuxgsm.com/configuration/start-parameters
+usertoken=""
+
 ## Server Parameters | https://docs.linuxgsm.com/configuration/start-parameters#additional-parameters
-startparameters="-nogui"
+startparameters="-nogui -userToken=${usertoken}"
 
 #### LinuxGSM Settings ####