feat(nodenv): add plugin for nodenv (#9880)

Co-authored-by: Matthew Boston <matthew@matthewboston.com>

plugins/nodenv/nodenv.plugin.zsh

@@ -0,0 +1,43 @@
+# This plugin loads nodenv into the current shell and provides prompt info via
+# the 'nodenv_prompt_info' function.
+
+FOUND_NODENV=${+commands[nodenv]}
+
+if [[ $FOUND_NODENV -ne 1 ]]; then
+  nodenvdirs=(
+    "$HOME/.nodenv"
+    "/usr/local/nodenv"
+    "/opt/nodenv"
+    "/usr/local/opt/nodenv"
+  )
+  for dir in $nodenvdirs; do
+    if [[ -d "${dir}/bin" ]]; then
+      export PATH="$PATH:${dir}/bin"
+      FOUND_NODENV=1
+      break
+    fi
+  done
+
+  if [[ $FOUND_NODENV -ne 1 ]]; then
+    if (( $+commands[brew] )) && dir=$(brew --prefix nodenv 2>/dev/null); then
+      if [[ -d "${dir}/bin" ]]; then
+        export PATH="$PATH:${dir}/bin"
+        FOUND_NODENV=1
+      fi
+    fi
+  fi
+fi
+
+if [[ $FOUND_NODENV -eq 1 ]]; then
+  eval "$(nodenv init --no-rehash - zsh)"
+  function nodenv_prompt_info() {
+    nodenv version-name 2>/dev/null
+  }
+else
+  # fallback to system node
+  function nodenv_prompt_info() {
+    echo "system: $(node -v 2>&1 | cut -c 2-)"
+  }
+fi
+
+unset FOUND_NODENV nodenvdirs dir