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/colors.zsh

@@ -2,6 +2,7 @@ COLOR_BLACK="\e[0;30m"
 COLOR_BLUE="\e[0;34m"
 COLOR_GREEN="\e[0;32m"
 COLOR_CYAN="\e[0;36m"
+COLOR_PINK="\e[0;35m"
 COLOR_RED="\e[0;31m"
 COLOR_PURPLE="\e[0;35m"
 COLOR_BROWN="\e[0;33m"