1.0.3

Handler behavior was modified:

• ConsoleOptionsHandler::AddKey function return 'false' if key already exists
• ConsoleOptionsHandler::ProcessArgument return 'false' if long option passed with worng number of the '-'

Example in README.md was updated.
The CMake option GETOPT_PP_BUILD_EXAMPLE for enabling the example was added.

Full Changelog: 1.0.2...1.0.3