[MSCTF][SDK] Add stubs for CRange (reactos#8096)

This PR is just a step, but a slightly
great one for OS development history.
JIRA issue: CORE-19361
- Add IAnchor interface into textstor.idl.
- Fix ITfRangeAnchor interface (that
  was wrong).
- Delete range.c.
- Add range.cpp.
- Add CRange class as stubs.

Author: katahiromz

base/ctf/msctf/CMakeLists.txt

@@ -12,14 +12,14 @@ list(APPEND SOURCE
     documentmgr.c
     inputprocessor.c
     msctf.c
-    range.c
     threadmgr.c
     precomp.h
     ${CMAKE_CURRENT_BINARY_DIR}/msctf_stubs.c)
 
 list(APPEND PCH_SKIP_SOURCE
     langbarmgr.cpp
     mlng.cpp
+    range.cpp
     utils.cpp)
 
 add_library(msctf MODULE