Revert "shiny.OgrePlatform.so should be installed in libdir"

More better if shiny.OgrePlatform will be in libdir/OGRE.

This reverts commit 0f5447b53309eb63a63318187595673175bfbe03.
now we have working example CMake module

Signed-off-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>
Merge pull request #25 from ignatenkobrain/cmake_example

Cmake example