Log Message:
tex-draftwatermark{,-doc}: update to 3.3

v3.3

- Declare precedence rules with respect to other users (eso-pic) of
  the shipout/background hook. This fixes the background stacking
  order when using pdfpages

And also (from v3.2, unreleased on CTAN)

- Fix name of legacy package in \ProvidesPackage;
- Fix version number of main package in \ProvidesPackage.

v3.1

* Use/require the `xcolor` package rather than the `color` package