Build: Use interface targets for inheriting flags and definitions

* Remove the usage of global flags and definitions
  set through the CMAKE_CXX_FLAGS variable.
* Use cmake target compile features for setting the
  CXX standard automatically.
* Make C++14 globally available in the project
* Closes #21033

(cherry picked from commit e60c1f84a7)

CMakeLists.txt

@@ -55,6 +55,7 @@ if( NOPCH )
   set(USE_SCRIPTPCH 0)
 endif()
 
+include(ConfigureBaseTargets)
 include(CheckPlatform)
 
 include(GroupSources)