chore(windows): cleanup keyman64.h usage

keyman64.h is now only used by keyman32/keyman64. Shared components have
been moved to legacy_kmx_memory.h - KMX structures in-memory, as used by
kmanalyze, kmdecomp.

Removed unnecessary references to keyman64.h from kmtip.

Also removed aiDebugger.* which are obsolete files.

One day in the future, we could merge keyman64.h with keymanengine.h.