ENH: provide dictionary access for coded BCs etc (#1922)

- in some cases, additional dictionary inputs are useful for extending
  the input parameters or functionality of dynamic coded conditions.

  Typically this can be used to provide a simple set of dictionary
  inputs that are used to drive specific code, but allows changing the
  inputs without causing a recompilation.

  Accessed with this type of code:
  ```
  const dictionary& dict = this->codeContext();
  ```

boundary conditions and function objects:

* specify an additional codeContext dictionary entry:
  ```
  codeContext
  {
      ...
  }
  ```

PatchFunction1:

* The code context dictionary is simply the dictionary used to specify
  the PatchFunction1 coefficients.

  To replicated persistant data, use local member static data.
  Eg,
  ```
  code
  #{
      // Persistent (Member) Data
      static autoPtr<Function1<scalar>> baseVel;
      static autoPtr<Function1<vector>> baseDir;
      ...
  #}
  ```

fvOptions:

* currently not applicable

etc/codeTemplates/dynamicCode/codedPatchFunction1Template.H

@@ -35,6 +35,7 @@ SourceFiles
 #define codedPatchFunction1Template${FieldType}_H
 
 #include "PatchFunction1.H"
+#include "dictionaryContent.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
@@ -49,12 +50,12 @@ namespace PatchFunction1Types
 
 class ${typeName}PatchFunction1${FieldType}
 :
-    public PatchFunction1<${TemplateType}>
+    public PatchFunction1<${TemplateType}>,
+    public dictionaryContent
 {
     //- The parent PatchFunction1 type
     typedef PatchFunction1<${TemplateType}> parent_bctype;
 
-
     // Private Member Functions
 
         //- Report a message with the SHA1sum
@@ -88,7 +89,7 @@ public:
         ${typeName}PatchFunction1${FieldType}
         (
             const ${typeName}PatchFunction1${FieldType}& rhs
-        );
+        ) = default;
 
         //- Copy construct, resetting patch
         ${typeName}PatchFunction1${FieldType}