Update the deps for the r package (#21654)

The dependencies needed a little clean up as several dependencies are
only needed for the +X variant. This PR consolidates all of the
dependencies that actually require +X and explicitly disables them when
~X to prevent accidentally picking up system libraries.

- modified the description of the +X variant
- arranges dependencies to group them
- added missing dependency on xz
- removed unneeded dependencies
	- freetype
	- glib
- set dependencies when +X
	- cairo
	- jpeg
	- libpng
	- libtiff
	- tcl/tk
- R uses tcl/tk together, so only tk needs to be depended on, and only
  when +X
- moved tcl/tk resources to with/without-x test
- added explicit with/without settings for
	- cairo
	- jpeglib
	- libpng
	- libtiff
	- tcltk

0 files changed, 0 insertions, 0 deletions