Adding a new CMake "find" LCG module for "freetype", to fix the Qt5 runtime error
This adds a new module in Build/AtlasLCG/modules/ to "find" the LCG "freetype" library.
When running without this, the systems freetype is taken, which, on SLC6, is an old version and not compatible with the "freetype" the Qt5 from LCG is compiled upon.