Added Tomorrow theme to project, other updates

+ Added tomorrow theme
+ added spectrum.zsh
+ added zsh/lib directory
+ updated prompt
+ updated colors
+ set vim theme to Tomorrow-Night-Bright
+ moved some zsh files to zsh/lib

zsh/prompt.zsh

@@ -42,5 +42,5 @@ directory_name(){
   echo "%{$fg_bold[cyan]%}%1/%\/%{$reset_color%}"
 }
 
-export PROMPT=$'%{$fg_bold[blue]%}%n%{$reset_color%}:$(directory_name) %{$fg_bold[cyan]%}➜%{$reset_color%} '
+export PROMPT=$'%{$FG[199]%}♥%{$reset_color%} $(directory_name) %{$fg_bold[magenta]%}➜%{$reset_color%} '
 export RPROMPT=$'$(git_dirty)$(need_push)'