Feature request: Parameterized file inclusion

For a project I'm currently working on, I want to include a table on many pages, somewhat in the vein of [infoboxes](https://en.wikipedia.org/wiki/Help:Infobox). Copying and pasting the markup for this is a significant maintenance burden. As a contrived example, it would be nice if I could do something like:

```text
[!include[infobox](infobox.md :
name='foo'
desc='bar'
image='baz.png'
)]
```

With `infobox.md` looking like:

```markdown

${name}

${desc}

I wouldn't particularly care what the syntax looks like; this is just a straw man. It would be good to be able to place the attribute assignments on separate lines for readability, though, since some of them might be long.