Revert of yaml-cpp to 0.6.2 due to YAML_LIBRARIES not being set in master

CMake/SuperBuild.cmake

 else()
     message( STATUS "YAML-CPP WAS NOT FOUND, BUILDING" )
     ExternalProject_Add(YAML_CPP
-        GIT_REPOSITORY  "https://github.com/jbeder/yaml-cpp.git"
-        GIT_TAG "master" # "yaml-cpp-0.6.2", # "master" 
+        GIT_REPOSITORY  "https://github.com/jbeder/yaml-cpp.git" 
+        GIT_TAG  "yaml-cpp-0.6.2"  # "master" 
         UPDATE_COMMAND ""
         PATCH_COMMAND ""
         PREFIX ${CMAKE_CURRENT_BINARY_DIR}/external/yaml-cpp

CMakeLists.txt

 #            "Please create a separate binary directory and run CMake there.")
 #    endif()
 
-    find_package (yaml-cpp 0.6         PATHS ${CMAKE_INSTALL_PREFIX}  NO_DEFAULT_PATH) # Serialisation of classes 
-    find_package (Eigen3   3.3         PATHS ${CMAKE_INSTALL_PREFIX}  NO_DEFAULT_PATH) # Matrix/Vector & Math
+    find_package (yaml-cpp 0.6    PATHS ${CMAKE_INSTALL_PREFIX}  NO_DEFAULT_PATH) # Serialisation of classes 
+    find_package (Eigen3   3.3    PATHS ${CMAKE_INSTALL_PREFIX}  NO_DEFAULT_PATH) # Matrix/Vector & Math
 
     if (LEMMA_PYTHON3_BINDINGS)
         find_package(pybind11 PATHS ${CMAKE_INSTALL_PREFIX} NO_DEFAULT_PATH)           # Python 3 bindings
     message ( STATUS "Missing hard dependencies have been found, these will be downloaded any compiled." )
     message ( STATUS "This necessitates a two step build." )
     message ( STATUS "Build these packages first...THEN RERUN CMAKE!" )
-    project (SUPERBUILD NONE)
+    project (SUPERBUILD NONE) 
   	# execute the superbuild (this script will be invoked again without the
-  	# USE_SUPERBUILD option this time)
-  	include (CMake/SuperBuild.cmake)
+  	# USE_SUPERBUILD option this time) 
+    include (CMake/SuperBuild.cmake)
   	return()                      # stop processing this file further
 else()
 	#project (Blah)               # <-- YOUR PROJECT NAME HERE

Modules/DCIP/CMakeLists.txt

+option ( LEMMA_MODULE_DCIP TRUE )
+
+if (LEMMA_MODULE_DCIP) 
+
 # Configure EMSchur3D 
 set(DCIP_VERSION_MAJOR "0")
 set(DCIP_VERSION_MINOR "0")
 set(DCIP_VERSION "\"${DCIP_VERSION_MAJOR}.${DCIP_VERSION_MINOR}.${DCIP_VERSION_PATCH}\"")
 set(DCIP_VERSION_NOQUOTES "${DCIP_VERSION_MAJOR}.${DCIP_VERSION_MINOR}.${DCIP_VERSION_PATCH}")
 
-option ( LEMMA_MODULE_DCIP TRUE )
-
 configure_file (
 	"${CMAKE_CURRENT_SOURCE_DIR}/config/DCIPConfig.h.in"
 	"${PROJECT_BINARY_DIR}/include/DCIPConfig.h"
 	#if (LEMMA_BUILD_EXAMPLES)
 	#	add_subdirectory(examples)
 	#endif()
+
+endif()

Modules/FDEM1D/CMakeLists.txt

 
 # Linking
 target_link_libraries(fdem1d "lemmacore")
+target_link_libraries(fdem1d ${YAML_CPP_LIBRARIES}) 
 
 if ( KIHA_EM1D )
 	target_link_libraries(fdem1d "kihaem1d")

Modules/LemmaCore/CMakeLists.txt

 target_link_libraries (lemmacore Eigen3::Eigen)
 #target_link_libraries (lemmacore CxxTest)
 target_link_libraries (lemmacore ${YAML_CPP_LIBRARIES}) 
+target_link_libraries (lemmacore ${YAML_CPP_LIBRARY}) 
 
 # Linking
 if ( LEMMA_VTK6_SUPPORT OR LEMMA_VTK7_SUPPORT OR LEMMA_VTK8_SUPPORT )