manifests: Split release manifest to two.

As stated in the manifest, use two release manifests:
1. Minimal one
2. Full one with all the desktop services enabled.

* etc/manifests/release.scm: Move to etc/manifests/release-minimal.scm.
* etc/manifests/release-minimal.scm (%system-packages):
Add packages from default privileged-programs.
Add %base-firmware.
Add %base-packages.
Remove desktops.
Remove xorg modules.

* etc/teams.scm (release): Add new splitted manifests.
* Makefile.am
(EXTRA_DIST): Remove release manifest; Add manifests release-minimal and
release-desktop.
(assert-binaries-available): Use new splitted release manifest.
* etc/manifests/release-desktop.scm (%system-packages):
Add desktops.
Add xorg modules.
* CODEOWNERS: Regenerate file.

Change-Id: I40de8b5d0f9c8b630e8af7969d4c195dd9e2c3e2
Signed-off-by: Efraim Flashner <efraim@flashner.co.il>

Makefile.am

@@ -784,7 +784,8 @@ EXTRA_DIST +=						\
   etc/manifests/disarchive.scm				\
   etc/manifests/hurd.scm				\
   etc/manifests/kernels.scm				\
-  etc/manifests/release.scm				\
+  etc/manifests/release-minimal.scm			\
+  etc/manifests/release-desktop.scm			\
   etc/manifests/source.scm				\
   etc/manifests/system-tests.scm			\
   etc/manifests/time-travel.scm				\
@@ -1240,9 +1241,10 @@ assert-no-store-file-names:
 # Make sure installer substitutes are available.  Check only the primary
 # server so that '--display-missing' doesn't print two lists.
 assert-binaries-available: $(GOBJECTS)
-	$(AM_V_at)$(top_builddir)/pre-inst-env				\
-	  guix weather -m "$(top_srcdir)/etc/manifests/release.scm"	\
-	                --substitute-urls="https://ci.guix.gnu.org"	\
+	$(AM_V_at)$(top_builddir)/pre-inst-env					\
+	  guix weather -m "$(top_srcdir)/etc/manifests/release-minimal.scm"	\
+	                -m "$(top_srcdir)/etc/manifests/release-desktop.scm"	\
+	                --substitute-urls="https://ci.guix.gnu.org"		\
 	                --display-missing
 
 # Make sure the final inputs don't refer to bootstrap tools.