ahahahahahahahahahaha
look at this noob he thinks this stuffty language actually has output formatting ahahahahahaha
no
the very best you're going to get is using tabs and spaces and stuff manually, or pretty red colors in the ingame console if you use error() instead of echo()
Now that might be an interesting library - blockland consoles can't expand horizontally, I think, so hardcode a max line length and you can center and right justify things with spaces.