Support multiple __configuration.cfg files

[anderscripts]

Use case for owners that want to run multiple servers off the same resources folder but want to have different queue settings per server. (IE, one server uses reserved slots, the other does not. Or one server is marked as white list only, the other server is not. Etc.)

Added to __configuration.cfg

# If you run multiple servers using the same resources folder then it is possible to have multiple __configuration.cfg files for by server custom queue settings
# If this is set to true it is required to set server_name "something" in your server.cfg file or another cfg file that is executed before the queue starts
# If this is set to true the server will load __configuration_something.cfg if your set server_name "something" is used
# __configuration_something.cfg must be in the same folder with __configuration.cfg to work properly
set q_use_custom_config "false"

This will require set server_name "custom_name" in server.cfg before fivemqueue is started and will also require a __configuration_custom_name.cfg with the customized settings.