Merge branch 'add_PyYAML_to_Gaudi' into 'master'

Add PyYAML dependency to Gaudi

See merge request !979

frameworks/CMakeLists.txt

@@ -26,7 +26,7 @@ LCGPackage_Add(
           IF NOT <VERSION> STREQUAL master AND <VERSION> VERSION_LESS v35r0 THEN
              COMMAND ${EXEC} bash -c "cp -n -r <INSTALL_DIR>/*.cmake <INSTALL_DIR>/cmake"
           ENDIF
-  DEPENDS Boost Python GSL ROOT clhep AIDA HepMC XercesC rangev3 cppgsl xenv six fmt pytest
+  DEPENDS Boost Python GSL ROOT clhep AIDA HepMC XercesC rangev3 cppgsl xenv six fmt pytest PyYAML
           IF <VERSION> STREQUAL master OR <VERSION> VERSION_GREATER_EQUAL v35r0 THEN
              jsonmcpp HepPDT CppUnit libunwind doxygen
              IF NOT ${LCG_OS} MATCHES ubuntu THEN gperftools ENDIF