Add shortcuts to support vsplit and split functionality in vim

[hk0i]

I don't know if the other editors have a similar function to vim's :split and :vsplit commands, but coming from using the command-t plugin I learned to expect to be able to choose exactly how to open a file once it is highlighted.

For example: Ctrl + v to open the selected file in a vertical split of the current buffer, Ctrl + s to open the file in a split.

One nice feature about the command-t plugin is that it lets you customize these keys and how they should operate. For example, you can set the default action for the enter key to open the file in a new tab, or in the current buffer, or in a split, etc...

It might be a good idea to figure out how to separate out that functionality and have it customizable. I'm really finding that I miss this functionality and it's almost a deal breaker for me.