ENH: Function1 and PatchFunction1 improvements (#1917)

- easier support for non-mandatory functions.

  In some boundary conditions it can be desirable to support
  additional functions, but not necessarily require them. Make this
  easier to support with a Function1, PatchFunction1 NewIfPresent()
  selector.

- support for compatibility lookups

- harmonize branching logic and error handling between Function1 and
  PatchFunction1.

ENH: refactor a base class for Function1, PatchFunction1

- includes base characteristics, patch or scalar information

ENH: additional creation macros

- makeConcreteFunction1, makeConcretePatchFunction1Type for adding a
  non-templated function into the correct templated selection table.
  makeScalarPatchFunction1 for similarity with makeScalarFunction1

src/meshTools/PatchFunction1/CodedField/CodedField.C

@@ -135,7 +135,7 @@ template<class Type>
 Foam::PatchFunction1Types::CodedField<Type>::CodedField
 (
     const polyPatch& pp,
-    const word& type,
+    const word& redirectType,
     const word& entryName,
     const dictionary& dict,
     const bool faceValues
@@ -156,10 +156,7 @@ Foam::PatchFunction1Types::CodedField<Type>::CodedField
     const CodedField<Type>& rhs
 )
 :
-    PatchFunction1<Type>(rhs),
-    codedBase(),
-    dict_(rhs.dict_),
-    name_(rhs.name_)
+    CodedField<Type>(rhs, rhs.patch())
 {}
 
 
@@ -202,7 +199,7 @@ Foam::PatchFunction1Types::CodedField<Type>::redirectFunction() const
                 this->patch(),
                 name_,
                 dict,
-                this->faceValues_
+                this->faceValues()
             )
         );
     }

src/meshTools/PatchFunction1/CodedField/CodedField.H

@@ -135,10 +135,6 @@ protected:
         // Get the dictionary to initialize the codeContext
         virtual const dictionary& codeDict() const;
 
-        //- No copy assignment
-        void operator=(const CodedField<Type>&) = delete;
-
-
 public:
 
     // Static Data Members
@@ -156,13 +152,19 @@ public:
     TypeName("coded");
 
 
+    // Generated Methods
+
+        //- No copy assignment
+        void operator=(const CodedField<Type>&) = delete;
+
+
     // Constructors
 
         //- Construct from entry name and dictionary
         CodedField
         (
             const polyPatch& pp,
-            const word& type,
+            const word& redirectType,
             const word& entryName,
             const dictionary& dict,
             const bool faceValues = true