Resurrect Cargonia (#6916)

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## About The Pull Request
Cargo rebuilt from the ground up.
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## Why It's Good For The Game
Endeavour's cargo is one of the things I originally wanted to avoid in
making the map. This rectifies it, returning some dignity to the
important department.
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## Changelog
Tears down and completely replaces cargo. This also removes the
**RIDICULOUS** stairs from science into the refinery. If you really need
it with no cargo, break in like everyone else.
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:cl:
del: stairs into refinery
tweak: "tweaked" cargo
tweak: adjusts IC credits, again
/:cl:

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maps/endeavour/levels/deck1.dmm

@@ -7883,7 +7883,7 @@
 "fND" = (
 /obj/structure/memorial{
 	name = "NSV Endeavour's Builder's Plate";
-	desc = "The Armstrong-Hawker Shipbuilding company would like to thank the following for the contributions to the design: Dáire van der Waals, M.D., Ph.D.; Ruminis Melro, B.S.E; Hammond McGuire Sr., M.S.E.. Their work was essential in the design and manufacture of this vessel, and those of her class in the years to follow."
+	desc = "The Armstrong-Hawker Shipbuilding company would like to thank the following for the contributions to the design: Dáire van der Waals, M.D., Ph.D.; Ruminis Melro, A.P., Ph.D.; Hammond McGuire Sr., M.S.E.. Their work was essential in the design and manufacture of this vessel, and those of her class in the years to follow."
 	},
 /turf/simulated/wall/prepainted/civilian,
 /area/station/stairs_one)

maps/endeavour/levels/deck2.dmm

@@ -19856,21 +19856,6 @@
 	},
 /turf/simulated/floor/tiled/white,
 /area/medical/sleeper)
-"mMY" = (
-/obj/structure/railing{
-	dir = 8
-	},
-/obj/structure/railing{
-	dir = 1
-	},
-/obj/structure/railing{
-	dir = 4
-	},
-/obj/machinery/door/firedoor{
-	dir = 1
-	},
-/turf/simulated/open,
-/area/rnd/research/researchdivision)
 "mNh" = (
 /turf/simulated/wall/r_wall/prepainted,
 /area/maintenance/fpmaint2)
@@ -21772,18 +21757,6 @@
 	},
 /turf/simulated/floor/tiled/white,
 /area/shuttle/emt/general)
-"nXl" = (
-/obj/structure/railing{
-	dir = 8
-	},
-/obj/structure/railing{
-	dir = 4
-	},
-/obj/machinery/door/firedoor{
-	dir = 1
-	},
-/turf/simulated/open,
-/area/rnd/research/researchdivision)
 "nXm" = (
 /turf/simulated/floor/tiled/dark,
 /area/rnd/anomaly_lab/containment_two)
@@ -52104,8 +52077,8 @@ kCt
 kCt
 cda
 lBS
-mMY
-nXl
+lBS
+lBS
 lBS
 ffI
 vWo