Implement new thread manager, port stuff to it.

Core/ThreadPools.cpp

@@ -1,26 +1,3 @@
 #include "ThreadPools.h"
 
-#include "../Core/Config.h"
-#include "Common/MakeUnique.h"
-
-std::unique_ptr<ThreadPool> GlobalThreadPool::pool;
-std::once_flag GlobalThreadPool::init_flag;
-
-void GlobalThreadPool::Loop(const std::function<void(int,int)>& loop, int lower, int upper, int minSize) {
-	std::call_once(init_flag, Inititialize);
-	pool->ParallelLoop(loop, lower, upper, minSize);
-}
-
-void GlobalThreadPool::Memcpy(void *dest, const void *src, int size) {
-	std::call_once(init_flag, Inititialize);
-	pool->ParallelMemcpy(dest, src, size);
-}
-
-void GlobalThreadPool::Memset(void *dest, uint8_t val, int size) {
-	std::call_once(init_flag, Inititialize);
-	pool->ParallelMemset(dest, val, size);
-}
-
-void GlobalThreadPool::Inititialize() {
-	pool = make_unique<ThreadPool>(g_Config.iNumWorkerThreads);
-}
+ThreadManager g_threadManager;