Add support for iTerm2 v3 in tab function

modules/osx/functions/tab

@@ -39,3 +39,14 @@ EOF
     end tell
 EOF
 }
+
+[[ "$the_app" == 'iTerm2']] && {
+  osascript 2>/dev/null <<EOF
+    tell application "iTerm2"
+      tell current window
+        create tab with default profile
+        tell current session to write text "${command}"
+      end tell
+    end tell
+EOF
+}