MLECO-756 First cut of adding JSONTimelineDecoder and tests

Change-Id: Ibcd5fdefb5dda3ac3f2a5ff6d6eca618c27c538b
Signed-off-by: Éanna Ó Catháin <eanna.ocathain@arm.com>
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 605e042..c093344 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -883,6 +883,7 @@
 
     if(BUILD_TIMELINE_DECODER)
         list(APPEND unittest_sources
+             src/timelineDecoder/tests/JSONTimelineDecoderTests.cpp
              src/timelineDecoder/tests/TimelineTests.cpp
              )
     endif()