Add sysrepo test for creating list instances

Change-Id: I1d48efae15e8c610b82398e7199ba1bccea1d310
diff --git a/example-schema.yang b/example-schema.yang
index 172f78a..19ec5b8 100644
--- a/example-schema.yang
+++ b/example-schema.yang
@@ -28,6 +28,13 @@
         presence true;
     }
 
+    list person {
+        key 'name';
+        leaf name {
+            type string;
+        }
+    }
+
     grouping upAndDown {
         leaf up {
             type boolean;