Move .gitignore file

Move .gitignore file to the root directory. These rules
are general for this project.

It will simplify the .spec file.

Signed-off-by: Martin Abente Lahaye <tch@sugarlabs.org>
Add packaging file

Include .spec file for generating the RPM package.

Signed-off-by: Martin Abente Lahaye <tch@sugarlabs.org>