Padding around border characters

[nickeb96]

Is it possible to add a config option that puts a virtual space around column borders? It tends to look a little bit crowded as is.

Currently I get this:

id     |alpha2  |alpha3  |name
      4|af      |afg     |Afghanistan
      8|al      |alb     |Albania
     12|dz      |dza     |Algeria

I'd like to get it to look more like this:

id     | alpha2 | alpha3 | name
     4 | af     | afg    | Afghanistan
     8 | al     | alb    | Albania
    12 | dz     | dza    | Algeria

(control over column left or right alignment would also be a plus here)