added a simple bash_completion script

[mathieulegrand]

I have added a basic bash_completion script. It can be used as a starting point (it only completes the list of projects for start now because this is what I need the most). To use it, just source bash_completion from your bashrc or bash_profile.

[achiurizo]

thanks for the bash_completion script. However there also exists one here: https://github.com/bobthecow/terminitor-completion . From glance it seems yours does support more commands. I'm still thinking on how I want to proceed with this. probably add a directory for this kind of stuff( perhaps including a zsh version as well).

[mathieulegrand]

Thank you for the link. The other script from bobthecow is better: going to .config/terminitor to look for the list of environments is much faster than asking terminitor to provide the list (which is what I do).