rsx/util: Add simple consistent hash function

rsx/vk/shaders_cache: Move vp control mask to dynamic state

rsx/vk/gl: adds a shader cache for GL. Also Separates pipeline storage for each backend

rsx: Add more texture state variables to the cache

Utilities/hash.h

@@ -0,0 +1,27 @@
+#pragma once
+#include <stdint.h>
+
+namespace rpcs3
+{
+	template<typename T>
+	static size_t hash_base(T value)
+	{
+		return static_cast<size_t>(value);
+	}
+
+	template<typename T>
+	static size_t hash_struct(const T& value)
+	{
+		// FNV 64-bit
+		size_t result = 14695981039346656037ull;
+		const unsigned char *bytes = reinterpret_cast<const unsigned char*>(&value);
+
+		for (size_t n = 0; n < sizeof(T); ++n)
+		{
+			result ^= bytes[n];
+			result *= 1099511628211ull;
+		}
+
+		return result;
+	}
+}