Implemented direct image data transfer

via websockets to the job-server.
The images are then served by the job-server itself.

Main.gd

@@ -5,6 +5,7 @@ var config = ConfigFile.new()
 var websocket_url
 var public_path
 var output_dir
+var serve_mode
 var cache_dir
 var auth_key
 var rendering = false
@@ -16,6 +17,7 @@ func _ready():
 	websocket_url = config.get_value("core", "websocket_url")
 	public_path = config.get_value("core", "public_path")
 	output_dir = config.get_value("core", "output_dir")
+	serve_mode = config.get_value("core", "serve_mode")
 	cache_dir = config.get_value("core", "cache_dir")
 	auth_key = config.get_value("core", "auth_key")