better organize configuration

Kconfig

@@ -1,5 +1,7 @@
 mainmenu "P-RAD configuration"
 
+comment "Readsb input config"
+
 config BASE_URL
 	string "HTTP backend base URL"
 	default "http://127.0.0.1:8200"
@@ -7,6 +9,9 @@ config BASE_URL
 	  Base URL of the backend the display fetches
 	  receiver and aircraft JSON from.
 
+
+comment "Main display configuration"
+
 config AUTOSCALE
 	bool "Autoscale range to fardest aircraft"
 	default y
@@ -40,6 +45,18 @@ config FIRST_RING_DISTANCE
 	help
 	  Distance of the first ring from the center of the screen.
 
+config TIME_BASED_VECTOR_LENGHT
+	int "Lenght of time based vector (minutes)"
+	range 1 8
+	default 2
+	help
+	  Time in minutes for time-Based vector represented by line stating in the middle of the an aircraft icon,
+	  going in distance of travel the lenght of this line is controled by this setting.
+	  For example if set to 2 minutes the line will end where the plane be in 2 minutes,
+	  if direction and speed does not change.
+
+comment "Receiver configuration"
+
 config FALLBACK_LAT
 	string "Fallback receiver latitude"
 	default "50.000000"
@@ -52,6 +69,8 @@ config FALLBACK_LON
 	help
 	  Longitude used when the receiver does not provide one.
 
+comment "Unit configuration"
+
 config METRIC
 	bool "Use metric units"
 	default y