SQL: Add sql template test helper (#91953)

pkg/storage/unified/sql/testdata/sqlite--resource_insert-simple.sql

@@ -0,0 +1,20 @@
+INSERT INTO "resource"
+    (
+        "guid",
+        "group",
+        "resource",
+        "namespace",
+        "name",
+        "value",
+        "action"
+    )
+    VALUES (
+        '',
+        'gg',
+        'rr',
+        'nn',
+        'name',
+        '[]',
+        'ADDED'
+    )
+;