Added serializeMsgPack() and measureMsgPack() (closes #358)

test/MsgPackSerializer/CMakeLists.txt

@@ -0,0 +1,14 @@
+# ArduinoJson - arduinojson.org
+# Copyright Benoit Blanchon 2014-2018
+# MIT License
+
+add_executable(MsgPackSerializerTests
+	destination_types.cpp
+	measure.cpp
+	serializeArray.cpp
+	serializeObject.cpp
+	serializeVariant.cpp
+)
+
+target_link_libraries(MsgPackSerializerTests catch)
+add_test(MsgPackSerializer MsgPackSerializerTests)