[idd] common: use CSRWLock throughout the drivers

Make CSRWLock own the native lock and provide scoped guards for shared,
exclusive, early-unlock, and non-blocking use.

Replace direct SRW lock management throughout the IDD, input driver,
and helper while preserving the existing lock scopes.

idd/LGIdd/transport/lgmp/CLGMPHost.cpp

@@ -137,9 +137,8 @@ void CLGMPHost::DeInit()
 
 LGMP_STATUS CLGMPHost::Process()
 {
-  AcquireSRWLockExclusive(&m_processLock);
+  CSRWExclusiveLock lock(m_processLock);
   const LGMP_STATUS status = lgmpHostProcess(m_host);
-  ReleaseSRWLockExclusive(&m_processLock);
   return status;
 }