adding cpp tests for default values

adding hash file generations

Author: SaumyaRai

tests/cpp_test_scenarios/BUILD

@@ -6,10 +6,12 @@ cc_binary(
         "src/main.cpp",
         "src/test_basic.cpp",
         "src/test_basic.hpp",
+        "src/cit/test_default_values.cpp",
+        "src/cit/test_default_values.hpp",
+        "src/helpers/kvs_parameters.hpp",
+        "src/helpers/kvs_instance.hpp",
     ],
-    copts = [
-        "-g",
-    ],
+    copts = ["-g"],
     visibility = ["//tests/python_test_cases:__pkg__"],
     deps = [
         "//src/cpp/src:kvs_cpp",