Enables ship-specific access by default & updates some ship configs (#…

…2989)

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## About The Pull Request

See title. By default, ship airlocks will now only open if you have
access for that specific ship. Two ships that specialize in service
(Boyardee and Lagoon) have this disabled by default. Additionally,
pirate ships have been updated to utilize the unused space_spawn config
setting.

## Why It's Good For The Game

players have been requesting this for like a year straight and letting
features go totally unused sucks

## Changelog

:cl:
tweak: Ship-specific access restrictions have been enabled.
tweak: Pirate ships no longer spawn docked to the outpost.
/:cl:

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_maps/configs/independent_boyardee.json

@@ -16,6 +16,7 @@
 	"starting_funds": 5000,
 	"map_short_name": "Boyardee-class",
 	"map_path": "_maps/shuttles/independent/independent_boyardee.dmm",
+	"unique_ship_access": false,
 	"job_slots": {
 		"Bartender": {
 			"outfit": "/datum/outfit/job/independent/bartender",

_maps/configs/independent_lagoon.json

@@ -13,6 +13,7 @@
 	],
 	"map_short_name": "Lagoon-class",
 	"map_path": "_maps/shuttles/independent/independent_lagoon.dmm",
+	"unique_ship_access": false,
 	"starting_funds": 3000,
 	"job_slots": {
 		"Captain": {

_maps/configs/pirate_libertatia.json

@@ -12,6 +12,7 @@
 		"PIRATES",
 		"NATURAL_AGGRESSIVE"
 	],
+	"space_spawn": true,
 	"job_slots": {
 		"Captain": {
 			"outfit": "/datum/outfit/job/independent/captain/pirate",

_maps/configs/pirate_noderider.json

@@ -15,6 +15,7 @@
 		"Riot",
 		"Combat"
 	],
+	"space_spawn": true,
 	"job_slots": {
 		"Command Node": {
 			"outfit": "/datum/outfit/job/independent/captain/pirate/jupiter",

code/datums/shuttles.dm

@@ -21,7 +21,8 @@
 	var/prefix = "ISV"
 	/// The full name of the ship's faction.
 	var/faction_name = "Independent"
-	var/unique_ship_access = FALSE
+	/// Whether or not players from other ships can open airlocks.
+	var/unique_ship_access = TRUE
 	/// Set by config JSON. If true, the template's ships' "default" spawn location (when bought by a player or loaded at roundstart)
 	/// will be in the middle of space, instead of at an outpost.
 	var/space_spawn = FALSE