Fix a few missing includes in header files

These header files had implicit dependencies on other header files, which are
now made explicit.

include/cantera/kinetics/RxnRates.h

@@ -14,6 +14,8 @@
 #include "cantera/base/ctexceptions.h"
 #include "cantera/base/stringUtils.h"
 
+#include <iostream>
+
 namespace Cantera
 {
 

include/cantera/thermo/SimpleThermo.h

@@ -10,6 +10,7 @@
 
 #include "SpeciesThermoMgr.h"
 #include "speciesThermoTypes.h"
+#include "cantera/base/global.h"
 
 namespace Cantera
 {

include/cantera/transport/WaterTransport.h

@@ -7,6 +7,7 @@
 #include "TransportBase.h"
 #include "cantera/numerics/DenseMatrix.h"
 #include "LiquidTransportParams.h"
+#include "cantera/thermo/WaterPropsIAPWS.h"
 
 namespace Cantera
 {