New sounds for welcoming the crew to the station (#26666)

* new welcome sounds

* went with S34NW idea, added NSS and removed crew, made Crebron sound better

* added diagoras welcome sound

code/modules/mapping/base_map_datum.dm

@@ -18,3 +18,5 @@
 	var/voteable = TRUE
 	/// Minimum amount of players required for this map to be eligible in random map picks.
 	var/min_players_random = 0
+	/// Sound to play at the start of the game, aka the welcoming sound
+	var/welcome_sound = 'sound/AI/welcome.ogg'

code/modules/mapping/station_datums.dm

@@ -3,18 +3,21 @@
 	technical_name = "Cyberiad"
 	map_path = "_maps/map_files/stations/boxstation.dmm"
 	webmap_url = "https://webmap.affectedarc07.co.uk/maps/paradise/cyberiad/"
+	welcome_sound = 'sound/AI/welcome_cyberiad.ogg'
 
 /datum/map/metastation
 	fluff_name = "NSS Cerebron"
 	technical_name = "MetaStation"
 	map_path = "_maps/map_files/stations/metastation.dmm"
 	webmap_url = "https://webmap.affectedarc07.co.uk/maps/paradise/metastation/"
+	welcome_sound = 'sound/AI/welcome_cerebron.ogg'
 
 /datum/map/deltastation
 	fluff_name = "NSS Kerberos"
 	technical_name = "Delta"
 	map_path = "_maps/map_files/stations/deltastation.dmm"
 	webmap_url = "https://webmap.affectedarc07.co.uk/maps/paradise/deltastation/"
+	welcome_sound = 'sound/AI/welcome_kerberos.ogg'
 
 /datum/map/cerestation
 	fluff_name = "NSS Farragus"
@@ -22,12 +25,14 @@
 	map_path = "_maps/map_files/stations/cerestation.dmm"
 	webmap_url = "https://webmap.affectedarc07.co.uk/maps/paradise/cerestation/"
 	min_players_random = 60
+	welcome_sound = 'sound/AI/welcome_farragus.ogg'
 
 /datum/map/emeraldstation
 	fluff_name = "NSS Diagoras"
 	technical_name = "EmeraldStation"
 	map_path = "_maps/map_files/stations/emeraldstation.dmm"
 	webmap_url = "https://affectedarc07.co.uk/emerald.html"
+	welcome_sound = 'sound/AI/welcome_diagoras.ogg'
 
 /datum/map/test_tiny
 	fluff_name = "test_tiny"