- Introduce KdpScreenAcquire() / KdpScreenRelease() helpers that allow
to correctly acquire or release the screen when using INBV for
"Screen-Mode" debugging.
- Introduce KdpAcquireLock() / KdpReleaseLock() helpers so as to reduce
the copy-pasted code required when acquiring spin-locks in the KD debug
logger functions.
- Close the opened KdpLogFileHandle file in the KdpInitDebugLog() logger
in case we failed to create the logger writer thread.
Also use explicit kernel-mode handle when opening the log file.
- static-ify some local variables, remove few hardcoded values, and
minor formatting.
- Correctly define the INIT_FUNCTION's.
- Always include kd64.h
- Change KdpPrompt() prototype to be compatible between KDBG and _WINDK_
- Rename KdComponentTable to KdpComponentTable to prevent a conflict
- Add some functions stubs and global variables
