ecxx-examples: Renamed example.

src/example -> src/examples
src/examples/simple_colourable_01 -> src/example/simple_inheritance_01
src/examples/simple_colourable_01/eo/simple_colourable_* -> src/examples/simple_colourable_01/eo/colourable_*
Merge branch 'master' of github.com:sav/ecxx into github-sav-master