Several changes for timestamp bundle:

Fully defined the structure.
Single copy of it + single timer across all modules, managing it is now the responsibility of KernelState.

add global_critical_region::PrepareToAcquire, which uses Prefetchw on the global crit. We now know we can use Prefetchw on all cpus that have AVX.
add  KeQueryInterruptTime, which is used by some dashboards.

add threading::NanoSleep

src/xenia/base/clock.cc

@@ -50,8 +50,7 @@ uint64_t last_guest_tick_count_ = 0;
 // Last sampled host tick count.
 uint64_t last_host_tick_count_ = Clock::QueryHostTickCount();
 
-
-using tick_mutex_type = std::mutex;  
+using tick_mutex_type = std::mutex;
 
 // Mutex to ensure last_host_tick_count_ and last_guest_tick_count_ are in sync
 // std::mutex tick_mutex_;
@@ -180,6 +179,10 @@ uint64_t Clock::QueryGuestSystemTime() {
   return guest_system_time_base_ + guest_system_time_offset;
 }
 
+uint64_t Clock::QueryGuestInterruptTime() {
+  return Clock::QueryHostInterruptTime();
+}
+
 uint32_t Clock::QueryGuestUptimeMillis() {
   return static_cast<uint32_t>(
       std::min<uint64_t>(QueryGuestSystemTimeOffset() / 10000,