feat(revamp): add zsh and neovim configs, add an install script and a dependencies list

config/zsh/.zprezto/modules/utility/functions/wdiff

@@ -0,0 +1,32 @@
+#
+# Highlights wdiff output.
+#
+# Authors:
+#   Sorin Ionescu <sorin.ionescu@gmail.com>
+#   Indrajit Raychaudhuri <irc@indrajit.com>
+#
+
+# function wdiff {
+
+if zstyle -t ':prezto:module:utility:wdiff' color; then
+  if (( $+commands[wdiff] )); then
+    command wdiff \
+          --avoid-wraps \
+          --start-delete="$(print -n $FG[red])" \
+          --end-delete="$(print -n $FG[none])" \
+          --start-insert="$(print -n $FG[green])" \
+          --end-insert="$(print -n $FG[none])" \
+          "$@" \
+      | sed 's/^\(@@\( [+-][[:digit:]]*,[[:digit:]]*\)\{2\} @@\)$/;5;6m\10m/g'
+  elif (( $+commands[git] )); then
+    command git --no-pager diff --no-ext-diff --no-index --color=auto --color-words "$@"
+  else
+    command wdiff "$@"
+  fi
+elif (( ! $+commands[wdiff] && $+commands[git] )); then
+    command git --no-pager diff --no-ext-diff --no-index --color=never "$@"
+else
+  command wdiff "$@"
+fi
+
+# }