[terminal] Added base16 shell scripts as submodule
[x11] Updated default font and colorscheme

Switched urxvt font to Inconsolata.

Added additional colors for base16 colorscheme
[vim] Updated colorscheme settings. Updated base16.

Modified some vim colorscheme settings so base16 would display properly
on my Fedora box.

I updated the base16-vim git submodule to the latest version.