[lldb][Windows] Invalidate cached register values on thread stop (#192430)

Invalidate cached values in register context data structures on every
thread stop.

NativeRegisterContextRegisterInfo::InvalidateAllRegisters performs no
operation by default. Subclasses may override it to clear cached values
within their register context data structures whenever a thread stops.

This change intends to set up the necessary infrastructure to support
caching of the thread context in NativeRegisterContextWindows_arm64,
which will improve read performance. Currently, the thread context is
retrieved for every read or write operation.

GitOrigin-RevId: 79fa36f9ceeb325b4c946a5a52b3c8775d7e7ddd