list/checkout recently used branches

Hi. I have a little script that parse git reflog to look for recently used branches.
It's similar to git checkout @{-n} but more user-friendly.

For example,

(nao) mgaitan@morochita:~/nao$ git recent-branches 
1 - feature/PSO-20131-refactor-to-avoid-package-s-interdependency
2 - feature/PSO-20723-include-ut_utils-only-in-development-installations
3 - feature/PSO-20130-move-model-s-related-tests
4 - develop
5 - develop_fixed
6 - master
7 - 48b39f6e31d0181af828fe2b660fc109d4aeb9d4
8 - master_fixed
9 - feature/PSO-20130-move-model-s-related-tests__

(nao) mgaitan@morochita:~/nao$ git recent-branches 2
Switched to branch 'feature/PSO-20723-include-ut_utils-only-in-development-installations'
Your branch is up-to-date with 'origin/feature/PSO-20723-include-ut_utils-only-in-development-installations'.

Here is my implementation, in python
https://gist.github.com/mgaitan/ba1e4e252b90a7fd4a4eb9e1742e94fb

Could it be useful in this package? I could rewrite it in bash, if it was needed.

Start by reviewing the existing git-extras command structure and the linked Python implementation, then inspect how git reflog and checkout are invoked. The finished command should list recently used branches and accept a numeric selection that checks out the corresponding entry, matching the examples in the issue.