Add PROJECT_NAME to each git target.
Add PROJECT_NAME to each git target.

Subproject builds create targets with the same names unless we make them unique.

Warning : this commit renames the git targets
make-branch, branch, cut, tag, retag, erase, tarball-create, tarball
to the same but with _${PROJECT_NAME} appended.

shuaibarshad/KAUST-CMake,jafyvilla/CMake,ptoharia/CMake,shuaibarshad/KAUST-CMake,shurikasa/CMake,shuaibarshad/KAUST-CMake,jafyvilla/CMake,ptoharia/CMake,ptoharia/CMake,jafyvilla/CMake,shurikasa/CMake,biddisco/CMake,shurikasa/CMake,ptoharia/CMake,shurikasa/CMake,biddisco/CMake,biddisco/CMake,biddisco/CMake,shuaibarshad/KAUST-CMake,jafyvilla/CMake