ENH: Function objects - first pass at updating read functionality

Note: should be using the result of the parent::read(dict) when
deciding whether to read local entries...

src/functionObjects/utilities/systemCall/systemCall.C

@@ -74,6 +74,8 @@ Foam::functionObjects::systemCall::~systemCall()
 
 bool Foam::functionObjects::systemCall::read(const dictionary& dict)
 {
+    functionObject::read(dict);
+
     dict.readIfPresent("executeCalls", executeCalls_);
     dict.readIfPresent("endCalls", endCalls_);
     dict.readIfPresent("writeCalls", writeCalls_);