COMP: applications, Python and Java lib should be merged into a specific otb folder

CMakeLists.txt

@@ -70,13 +70,13 @@ if(NOT OTB_INSTALL_INCLUDE_DIR)
   set(OTB_INSTALL_INCLUDE_DIR include/OTB-${OTB_VERSION_MAJOR}.${OTB_VERSION_MINOR})
 endif()
 if(NOT OTB_INSTALL_APP_DIR)
-  set(OTB_INSTALL_APP_DIR "${OTB_INSTALL_LIBRARY_DIR}/applications")
+  set(OTB_INSTALL_APP_DIR "lib/otb/applications")
 endif()
 if(NOT OTB_INSTALL_PYTHON_DIR)
-  set(OTB_INSTALL_PYTHON_DIR "${OTB_INSTALL_LIBRARY_DIR}/python")
+  set(OTB_INSTALL_PYTHON_DIR "lib/otb/python")
 endif()
 if(NOT OTB_INSTALL_JAVA_DIR)
-  set(OTB_INSTALL_JAVA_DIR "${OTB_INSTALL_LIBRARY_DIR}/java")
+  set(OTB_INSTALL_JAVA_DIR "lib/otb/java")
 endif()
 if(NOT OTB_INSTALL_DATA_DIR)
   set(OTB_INSTALL_DATA_DIR share/OTB-${OTB_VERSION_MAJOR}.${OTB_VERSION_MINOR})