Rename DataEntry -> Function1

Function1 is an abstract base-class of run-time selectable unary
functions which may be composed of other Function1's allowing the user
to specify complex functions of a single scalar variable, e.g. time.
The implementations need not be a simple or continuous functions;
interpolated tables and polynomials are also supported.  In fact form of
mapping between a single scalar input and a single primitive type output
is supportable.

The primary application of Function1 is in time-varying boundary
conditions, it also used for other functions of time, e.g. injected mass
is spray simulations but is not limited to functions of time.

etc/codeTemplates/BC/BC.C

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2015 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2015-2016 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -76,7 +76,7 @@ CONSTRUCT
     scalarData_(readScalar(dict.lookup("scalarData"))),
     data_(pTraits<TYPE>(dict.lookup("data"))),
     fieldData_("fieldData", dict, p.size()),
-    timeVsData_(DataEntry<TYPE>::New("timeVsData", dict)),
+    timeVsData_(Function1<TYPE>::New("timeVsData", dict)),
     wordData_(dict.lookupOrDefault<word>("wordName", "wordDefault")),
     labelData_(-1),
     boolData_(false)
@@ -203,7 +203,10 @@ void Foam::CLASS::updateCoeffs()
     );
 
     const scalarField& phip =
-        this->patch().template lookupPatchField<surfaceScalarField, scalar>("phi");
+        this->patch().template lookupPatchField<surfaceScalarField, scalar>
+        (
+            "phi"
+        );
     this->valueFraction() = 1.0 - pos(phip);
 
     PARENT::updateCoeffs();