Add the git checkout feature

[lfv89]

Another feature that I've been playing with is the git checkout. On the terminal when I type "git tree" I see this:

• 7b98e09 (HEAD, origin/git-checkout, git-checkout) Allows the checkout of a git SHA
• 05f31b4 (origin/master, origin/development, master, development) Allows the configuration of any search engine
• 2f52dd7 Remove the hard code current path
• d896e24 Adds the google search feature

So, I thought that it might be cool to make the plugin be capable of do a git checkout based on a sha, branch or tag.

What do you think?

[bruno-]

Hey @vasconcelloslf, this feature makes sense, but it's not related to the core idea of tmux-open.

I'd like to encourage you to make a new repository out of this PR. The potential for tmux <-> git integration is huge and a new project (maybe tmux-git?) would be a good base for future enhancements in this direction.

Also, please free to reuse/copy all the code you want from tmux-open (or any other plugin for the matter). Let me know when you have something and I'd be glad to add a link to your plugin from this projects README and in tpm project.

How does that sound?

[lfv89]

It sounds great! I will definitely do that. I will let you know when I have something solid.