Reactos

[MSCTFIME][SDK][USER32] Add msctfime.ime (stub) (#6141) master

## Overview 1. msctfime.ime is an IME file interface for new-style IMEs a.k.a. "Text Input Processors" (TIPs). 2. msctfime.ime is loaded as old-style IME file at ImmLoadLayout in specific condition. 3. msctfime.ime communicates with the current TIP (This feature is not implemented yet). ## Proposed changes - Add msctfime module at dll/ime/msctfime. - The functions in this module are currently stub. - Move IME file interface declarations from <imm.h> to <ddk/immdev.h>. - Modify ImmNotifyIME, NotifyIME, and ImeProcessKey prototypes for x64 compliance. CORE-19360