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

## Overview
1. msctfime.ime is an IME file interface
for new-style IMEs a.k.a. "Text Input
Processors" (TIPs).
2. msctfime.ime is load

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

## 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

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