Check for null string passed to Win32Thread::set_name

Move impl of XamAlloc into XamAllocImpl
Implement XamAllocEx
Implement XamIsCurrentTitleDash
Implement XamGetLocaleDateFormat
Implement "stub" of XFileFsDeviceInformation, XFileSectorInformation (log warnings when they're executed so this doesnt get mistaken for an actual implementation)
Added xboxkrnl_memory file
Moved meat of MmAllocatePhysicalMemoryEx into xeMmAllocatePhysicalMemoryEx, exposed its definition via xboxkrnl_memory.

Moved impl of RtlImageHeaderNt into a helper function
Implement RtlImageDirectoryEntryToData
Implement KeSuspendThread
Check for bad handles passed in XOVERLAPPED, fixes crash in 415608D8

src/xenia/base/threading_win.cc

@@ -149,10 +149,11 @@ void MaybeYield() {
   // MemoryBarrier();
 }
 void NanoSleep(int64_t ns) {
-//nanosleep is done in 100 nanosecond increments
+  // nanosleep is done in 100 nanosecond increments
   int64_t in_nt_increments = ns / 100LL;
   if (in_nt_increments == 0 && ns != 0) {
-	//if we're explicitly requesting a delay of 0 ns, let it go through, otherwise if it was less than a 100ns increment we round up to 100ns
+    // if we're explicitly requesting a delay of 0 ns, let it go through,
+    // otherwise if it was less than a 100ns increment we round up to 100ns
     in_nt_increments = 1;
   }
   in_nt_increments = -in_nt_increments;
@@ -514,6 +515,10 @@ class Win32Thread : public Win32Handle<Thread> {
   ~Win32Thread() = default;
 
   void set_name(std::string name) override {
+    // this can actually happen in some debug builds
+    if (&name == nullptr) {
+      return;
+    }
     xe::threading::set_name(handle_, name);
     Thread::set_name(name);
   }