STYLE: Format class definitions

Change-Id: Icdecfcaba22d18f5939659d9256b21b3d89e7e8a
Merge topic 'ClassDefinitionFormatting'

b89a511 STYLE: Format class definitions
Merge topic 'MacroFormatting'

7157f22 STYLE: Formatting of ITK macro uses
Merge topic 'SmartPointerFormatting'

6391712 STYLE: SmartPointer typedef formatting
ENH: Cleanup ObjectDocuments classes and add basic tests

Change-Id: Ia5a27b73f37d9f52e215ef784bb21373029034d5