ENH: consistent autoPtr handling in PatchFunction1

etc/codeTemplates/dynamicCode/codedPatchFunction1Template.C

etc/codeTemplates/dynamicCode/codedPatchFunction1Template.H

src/meshTools/PatchFunction1/CodedField/CodedField.C

src/meshTools/PatchFunction1/CodedField/CodedField.H

src/meshTools/PatchFunction1/ConstantField/ConstantField.H

src/meshTools/PatchFunction1/ConstantField/ConstantFieldI.H

src/meshTools/PatchFunction1/MappedFile/AverageField.C

src/meshTools/PatchFunction1/MappedFile/AverageField.H

src/meshTools/PatchFunction1/MappedFile/MappedFile.C

src/meshTools/PatchFunction1/coordinateScaling.C

src/meshTools/PatchFunction1/coordinateScaling.H