bpo-35081: And pycore_lifecycle.h and pycore_pathconfig.h (GH-10273)

* And pycore_lifecycle.h and pycore_pathconfig.h headers to
  Include/internal/
* Move Py_BUILD_CORE specific code from coreconfig.h and
  pylifecycle.h to pycore_pathconfig.h and pycore_lifecycle.h
* Move _Py_wstrlist_XXX() definitions and _PyPathConfig code
  from pycore_state.h to pycore_pathconfig.h
* Move "Init" and "Fini" function definitions from pylifecycle.c to
  pycore_lifecycle.h.
diff --git a/Python/import.c b/Python/import.c
index 18cd29d..67911ff 100644
--- a/Python/import.c
+++ b/Python/import.c
@@ -5,6 +5,7 @@
 #include "Python-ast.h"
 #undef Yield /* undefine macro conflicting with winbase.h */
 #include "pycore_hash.h"
+#include "pycore_lifecycle.h"
 #include "pycore_mem.h"
 #include "pycore_state.h"
 #include "errcode.h"