bpo-35134: Create Include/cpython/tupleobject.h (GH-10764)

Move tupleobject.h code surrounded by "#ifndef Py_LIMITED_API"
to a new Include/cpython/tupleobject.h header file.

Add cpython/ header files to Makefile.pre.in and pythoncore project
of PCbuild.
diff --git a/PCbuild/pythoncore.vcxproj b/PCbuild/pythoncore.vcxproj
index 8aa4c06..4ae2d69 100644
--- a/PCbuild/pythoncore.vcxproj
+++ b/PCbuild/pythoncore.vcxproj
@@ -95,7 +95,15 @@
     <ClInclude Include="..\Include\complexobject.h" />
     <ClInclude Include="..\Include\context.h" />
     <ClInclude Include="..\Include\coreconfig.h" />
+    <ClInclude Include="..\Include\cpython\abstract.h" />
+    <ClInclude Include="..\Include\cpython\dictobject.h" />
+    <ClInclude Include="..\Include\cpython\object.h" />
     <ClInclude Include="..\Include\cpython\objimpl.h" />
+    <ClInclude Include="..\Include\cpython\pyerrors.h" />
+    <ClInclude Include="..\Include\cpython\pylifecycle.h" />
+    <ClInclude Include="..\Include\cpython\pystate.h" />
+    <ClInclude Include="..\Include\cpython\tupleobject.h" />
+    <ClInclude Include="..\Include\cpython\unicodeobject.h" />
     <ClInclude Include="..\Include\datetime.h" />
     <ClInclude Include="..\Include\descrobject.h" />
     <ClInclude Include="..\Include\dictobject.h" />