Updated ancillary for SES36 from v4

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>

dev/fluids/SES36.json

@@ -50,23 +50,21 @@
       "Tmax": 449.7, 
       "Tmin": 200.0, 
       "description": "rho' = rhoc*(1+sum(n_i*theta^t_i))", 
-      "max_abserror_percentage": 32.94120614200753, 
+      "max_abserror_percentage": -1, 
       "n": [
-        514.1312054060722, 
-        -1848.2456018708629, 
-        8650.456163417914, 
-        -72548.98608130115, 
-        94049.29472462909, 
-        -496673.06801196904
+        -0.3968, 
+        17.9889, 
+        -52.375, 
+        67.9231, 
+        -31.7301
       ], 
       "reducing_value": 2800.0, 
       "t": [
-        2.448, 
-        3.217, 
-        5.164, 
-        7.701, 
-        8.763, 
-        17.504
+        0.33333333333, 
+        0.66666666666, 
+        1.0, 
+        1.333333333333, 
+        1.666666666666
       ], 
       "type": "rhoLnoexp", 
       "using_tau_r": false