validation: Test User Extensions Manager

The test source code is generated from specification items
by the "./spec2modules.py" script contained in the
git://git.rtems.org/rtems-central.git Git repository.

Please read the "How-To" section in the "Software Requirements Engineering"
chapter of the RTEMS Software Engineering manual to get more information about
the process.

Update #3716.

spec/build/testsuites/validation/grp.yml

@@ -30,6 +30,8 @@ links:
   uid: performance-no-clock-0
 - role: build-dependency
   uid: terminate
+- role: build-dependency
+  uid: userext
 - role: build-dependency
   uid: validation-0
 - role: build-dependency

spec/build/testsuites/validation/userext.yml

@@ -0,0 +1,20 @@
+SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+build-type: test-program
+cflags: []
+copyrights:
+- Copyright (C) 2021 embedded brains GmbH (http://www.embedded-brains.de)
+cppflags: []
+cxxflags: []
+enabled-by: true
+features: c cprogram
+includes: []
+ldflags: []
+links: []
+source:
+- testsuites/validation/tc-userext.c
+- testsuites/validation/ts-userext.c
+stlib: []
+target: testsuites/validation/ts-userext.exe
+type: build
+use-after: []
+use-before: []

spec/build/testsuites/validation/validation-no-clock-0.yml

@@ -104,6 +104,9 @@ source:
 - testsuites/validation/tc-timer-reset.c
 - testsuites/validation/tc-timer-server-fire-after.c
 - testsuites/validation/tc-timer-server-fire-when.c
+- testsuites/validation/tc-userext-create.c
+- testsuites/validation/tc-userext-delete.c
+- testsuites/validation/tc-userext-ident.c
 - testsuites/validation/tr-event-constant.c
 - testsuites/validation/tr-mtx-seize-try.c
 - testsuites/validation/tr-mtx-seize-wait.c