message: Update changelog for inheritance support
diff: ## [1.35.5] - Development
  ### Added
  +- Added material inheritance support to graph traversal and the high-level Material API.
  +- Added Material methods getActiveShaderRefs and getActiveOverrides.
  +- Added Element methods setInheritsFrom, getInheritsFrom, traverseInheritance, and hasInheritanceCycle.
  - Added support for Visual Studio 2017, GCC 7, and Clang 5.
  ### Changed
  -- Updated Python bindings to PyBind11 2.2.
  +- Updated Python bindings to PyBind11 2.2.1.
  ## [1.35.4] - 2017-12-18
  