RandomX: added huge-pages-jit config parameter

Set to false by default, gives 0.2% boost on Ryzen 7 3700X with 16 threads, but hashrate might be unstable on Ryzen between launches. Use with caution.

src/crypto/common/VirtualMemory.h

@@ -61,7 +61,7 @@ public:
     static bool isHugepagesAvailable();
     static bool isOneGbPagesAvailable();
     static uint32_t bindToNUMANode(int64_t affinity);
-    static void *allocateExecutableMemory(size_t size);
+    static void *allocateExecutableMemory(size_t size, bool hugePages);
     static void *allocateLargePagesMemory(size_t size);
     static void *allocateOneGbPagesMemory(size_t size);
     static void destroy();