Update functions.sh script
Update functions.sh script

- Changed deb package extraction to handle more cases (data.tar.gz/bz2/xz)

pythia-project/pythia-core,pythia-project/pythia,pythia-project/pythia-core,pythia-project/pythia,pythia-project/pythia,pythia-project/pythia-core,pythia-project/pythia,pythia-project/pythia-core,pythia-project/pythia,pythia-project/pythia,pythia-project/pythia-core,pythia-project/pythia-core