Add a minimal msgpack serialiser for ccf

CMakeLists.txt

@@ -752,6 +752,20 @@ if(BUILD_TESTS)
       target_link_libraries(cbor_fuzz_test PRIVATE evercbor)
     endif()
 
+    add_unit_test(
+      msgpack_test
+      ${CMAKE_CURRENT_SOURCE_DIR}/src/msgpack/test/encode_test.cpp
+      ${CMAKE_CURRENT_SOURCE_DIR}/src/msgpack/test/differential_test.cpp
+      ${CMAKE_CURRENT_SOURCE_DIR}/src/msgpack/test/fuzz_script_test.cpp
+    )
+
+    if(FUZZING)
+      add_fuzz_test(
+        msgpack_fuzz_test
+        ${CMAKE_CURRENT_SOURCE_DIR}/src/msgpack/test/msgpack_fuzz.cpp
+      )
+    endif()
+
     add_unit_test(
       sharing_test
       ${CMAKE_CURRENT_SOURCE_DIR}/src/crypto/test/secret_sharing.cpp

client_out.txt

@@ -0,0 +1 @@
+python3: can't open file '/home/cjen1-msft/CCF/.worktrees/msgpack/probe_client.py': [Errno 2] No such file or directory