samples/subsys/settings: add test harness

Added Harness in sample.yaml

Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>

samples/subsys/settings/sample.yaml

@@ -0,0 +1,32 @@
+sample:
+  name: Settings Sample
+
+tests:
+  sample.subsys.settings:
+    tags: settings
+    timeout: 10
+    platform_whitelist: qemu_x86
+    harness: console
+    harness_config:
+      type: multi_line
+      regex:
+        - "subtree <alpha> handler registered: OK"
+        - "# iteration 0"
+        - "[.]*<alpha/length> value exist in the storage"
+        - "[.]*Can\\'t to load the <alpha/length> value as expected"
+        - "<gamma> = 0 \\(default\\)"
+        - "# iteration 1"
+        - "# iteration 4"
+        - "<alpha/beta/source> = abcd"
+        - "# iteration 5"
+        - "<alpha/length/2> = 55"
+        - "<alpha/length/1> = 45"
+        - "<alpha/angle/1> = 5"
+        - "<alpha/beta/source> is not compatible with the application"
+        - "<alpha/beta/voltage> = -3125"
+        - "direct.length = 100"
+        - "direct.length_1 = 46"
+        - "direct.length_2 = 54"
+        - "<gamma> = 5"
+        - "The settings destination off the key <alpha/beta/source> has got value: \"RT\""
+        - "String value \"rtos\" was retrieved from the settings destination off the key <alpha/beta/source>"