small tweak

timemanager/CMakeLists.txt

@@ -1,9 +1,8 @@
-target_sources(${LIB_FSFW_NAME} 
+target_sources(${LIB_FSFW_NAME} PRIVATE
-	PRIVATE 
+    CCSDSTime.cpp
-		CCSDSTime.cpp
+    Countdown.cpp
-		Countdown.cpp
+    Stopwatch.cpp
-		Stopwatch.cpp
+    TimeMessage.cpp
-		TimeMessage.cpp
+    TimeStamper.cpp
-		TimeStamper.cpp
+    ClockCommon.cpp
-		ClockCommon.cpp
 )