Add .clang_format file to FT repo. This file defines our code format style which is based on the Google coding standard guidelines.
Add .clang_format file to FT repo. This file defines our code format style which
is based on the Google coding standard guidelines.

percona/PerconaFT,percona/PerconaFT,BohuTANG/ft-index,percona/PerconaFT,BohuTANG/ft-index,percona/PerconaFT,BohuTANG/ft-index,BohuTANG/ft-index