Add bash-completion

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Include bash-completion into RPM package

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Include bash-completion into DEB package

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>