cc @dragonstyle

We want to do filters like this:

```
      filters:
        pre:
          - pre.lua
        render:
          - render.lua
        post:
          - post.lua
```

The inspiration is the sweet positioning of asciidoc.lua and that's how everything else should be in our filter chain.
cscheid
2023-01-26T18:38:47Z
cscheid
enhancement
v1.4
open
improve pre-post filter decomposition
https://github.com/quarto-dev/quarto-cli/issues/4113