make the CbmYamlInterface library use the same include with path convention as the rest of the code

algo/base/yaml/CMakeLists.txt

 set(INCLUDE_DIRECTORIES
-  ${CMAKE_CURRENT_SOURCE_DIR}
+  ${CMAKE_SOURCE_DIR}/algo/base  # For "algo/base/yaml/*.h" included as relative "yaml/?????.h" to fit install tree
 )
 
 add_library(CbmYamlInterface INTERFACE)
@@ -10,13 +10,13 @@ target_include_directories(CbmYamlInterface
 
 target_link_libraries(CbmYamlInterface
   INTERFACE GSL
-            xpu 
-            fmt::fmt 
+            xpu
+            fmt::fmt
             external::yaml-cpp
 )
 
 install(
-  FILES 
+  FILES
     BaseTypes.h
     Property.h
     Yaml.h

algo/base/yaml/Yaml.h

@@ -3,11 +3,11 @@
    Authors: Felix Weiglhofer [committer] */
 #pragma once
 
-#include "BaseTypes.h"
 #include "Definitions.h"
-#include "Property.h"
 #include "compat/Filesystem.h"
 #include "util/EnumDict.h"
+#include "yaml/BaseTypes.h"
+#include "yaml/Property.h"
 
 #include <sstream>
 #include <string_view>