[Spice-devel] qxl: Move more guest resource release to red-parse-qxl

[Christophe Fergeau]

Hey,

Currently, after parsing a QXL command through red-parse-qxl, the code which
got the command has to tell red-parse-qxl when it no longer needs the
command, but also to remember to release the command QXL resources
itself. This series moves this 'release resource' logic to
red-parse-qxl. This also changes all the parsed QXL commands to use
_new/_ref/_unref in order to have a consistent API.

Changes since v3:
- rebased on top of master
- dropped the last 3 patches which were RFC and did not get any
  feedback. I'll resend once this series has moved forward.

Changes since v2:
- switched all QXL command parsing to use _new/_ref/_unref
- added new patches doing this for RedSurfaceCmd
- added patches introducing RedQXLGuestResources and using QXLCommandExt in
  red-parse-qxl.h interface

Changes since v1:
- moved renaming patch to the end, and made it much more extensive
- added a new patch unifying identical methods
- reworked 'qxl: Fix guest resources release in red_put_drawable()' so that it's similar to
  the cursor changes

Christophe