Update gitignore
Update gitignore

biddisco/CMake,jafyvilla/CMake,shurikasa/CMake,BlueBrain/Tuvok,rballester/vmmlib,BlueBrain/Tuvok,tribal-tec/vmmlib,ptoharia/CMake,jafyvilla/CMake,jafyvilla/CMake,rballester/vmmlib,biddisco/CMake,rballester/vmmlib,ptoharia/CMake,shuaibarshad/KAUST-CMake,hernando/vmmlib,shurikasa/CMake,jafyvilla/CMake,hernando/vmmlib,shurikasa/CMake,biddisco/CMake,hernando/vmmlib,shurikasa/CMake,ptoharia/CMake,shuaibarshad/KAUST-CMake,ptoharia/CMake,shuaibarshad/KAUST-CMake,biddisco/CMake,shuaibarshad/KAUST-CMake,BlueBrain/Tuvok