add source and dest test stubs

unittests/cfdp/CMakeLists.txt

@@ -12,4 +12,6 @@ target_sources(
           testFileData.cpp
           testCfdpHeader.cpp
           testFileDirective.cpp
-          testDistributor.cpp)
+          testDistributor.cpp
+          testDestHandler.cpp
+          testSourceHandler.cpp)

unittests/cfdp/testDestHandler.cpp

@@ -0,0 +1,5 @@
+#include <catch2/catch_test_macros.hpp>
+
+TEST_CASE("CFDP Dest Handler", "[cfdp]") {
+
+}

unittests/cfdp/testSourceHandler.cpp

@@ -0,0 +1,5 @@
+#include <catch2/catch_test_macros.hpp>
+
+TEST_CASE("CFDP Source Handler", "[cfdp]") {
+
+}