Remove yadr folder in order to add yadr submodule
Added yadr submodule
Point to new location for yadr zsh files.
Remove zprezto submodule as it is already included in yadr.
Remove vim files as they are included in yadr.
Remove tmux file as it is included in yadr.
Removed zlogin and zshenv as they are in yadr.
Added Oh My Zsh submodule.