chemistryReductionMethods: Change dictionaries to lists

The "initialSet" and "fuelSpecies" settings for chemistry reduction
methods now have to be formatted as lists, rather than dictionaries.
This is so that the settings in the TDAC configuration files can be
overridden in a case without the dictionaries being merged.

tutorials/combustion/chemFoam/ic8h18_TDAC/constant/chemistryProperties

@@ -40,11 +40,11 @@ reduction
 
     // Search initiating set (SIS) of species, needed for most methods
     initialSet
-    {
-        CO;
-        IC8H18;
-        HO2;
-    }
+    (
+        CO
+        IC8H18
+        HO2
+    );
 }
 
 // Tabulation is not effective for single-cell ignition calculations

tutorials/combustion/reactingFoam/RAS/DLR_A_LTS/constant/chemistryProperties

@@ -48,11 +48,11 @@ reduction
 
     // Search initiating set (SIS) of species, needed for most methods
     initialSet
-    {
-        CO;
-        CH4;
-        HO2;
-    }
+    (
+        CO
+        CH4
+        HO2
+    );
 
     // For DAC, option to automatically change the SIS switch from HO2 to H2O
     // and CO to CO2, + disable fuel
@@ -60,9 +60,9 @@ reduction
 
     // When automaticSIS, the method needs to know the fuel
     fuelSpecies
-    {
-        CH4 1;
-    }
+    (
+        (CH4 1)
+    );
 }
 
 tabulation