Enabled restart for hydrogen combustion tutorial

Author: EvertBunschoten

incompressible_flow/Inc_Combustion/1__premixed_hydrogen/H2_burner.cfg

@@ -137,7 +137,7 @@ WRT_ZONE_HIST= YES
 %
 % ------------------------- INPUT/OUTPUT INFORMATION --------------------------%
 %
-RESTART_SOL=NO
+RESTART_SOL=YES
 OUTPUT_PRECISION= 16
 TABULAR_FORMAT = CSV
 MESH_FILENAME=H2_burner.su2