Moved find fastcdr to parent CMakeList

Moved up findCdr or build default library so that cmake does not fail
before building when fastCdr is installed on system.
Added message so that user knows when fastCdr is found on its system.

Issue:
[facontidavide#919]
Co-authored-by: manuelValch

plotjuggler_plugins/ParserROS/CMakeLists.txt

@@ -3,6 +3,20 @@ add_definitions(${QT_DEFINITIONS})
 add_definitions(-DQT_PLUGIN)
 
 SET(INTROSPECTION_TESTS OFF CACHE BOOL "Compile the tests")
+
+# Check if default fastCdr library generation is needed
+find_package(fastcdr QUIET)
+
+if(NOT fastcdr_FOUND )
+    # Override Fast-CDR option: compile as static lib
+    SET(BUILD_SHARED_LIBS OFF CACHE BOOL "Create shared libraries by default")
+    add_subdirectory(3rdparty/Fast-CDR)
+    include_directories(3rdparty/Fast-CDR/include)
+else()
+    # Mention that FastCdr has been found on system
+    message(STATUS "[FastCdr] found, version: ${fastcdr_VERSION}")
+endif()
+
 add_subdirectory(rosx_introspection)
 
 include_directories( rosx_introspection/include )

plotjuggler_plugins/ParserROS/rosx_introspection/CMakeLists.txt

@@ -9,15 +9,6 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 set(CMAKE_POSITION_INDEPENDENT_CODE ON)
 
-find_package(fastcdr QUIET)
-
-if(NOT fastcdr_FOUND )
-    # Override Fast-CDR option: compile as static lib
-    SET(BUILD_SHARED_LIBS OFF CACHE BOOL "Create shared libraries by default")
-    add_subdirectory(3rdparty/Fast-CDR)
-    include_directories(3rdparty/Fast-CDR/include)
-endif()
-
 ###############################################
 ## Declare a C++ library
 ###############################################