Allow any shader SSBO constant buffer slot and offset (#2237)

* Allow any shader SSBO constant buffer slot and offset

* Fix slot value passed to SetUsedStorageBuffer on fallback case

* Shader cache version

* Ensure that the storage buffer source constant buffer offset is word aligned

* Fix FirstBinding on GetUniformBufferDescriptors

src/Ryujinx.Graphics.Shader/Translation/GlobalMemory.cs

@@ -16,6 +16,8 @@ namespace Ryujinx.Graphics.Shader.Translation
         public const int UbeDescsSize  = StorageDescSize * UbeMaxCount;
         public const int UbeFirstCbuf  = 8;
 
+        public const int DriverReservedCb = 0;
+
         public static bool UsesGlobalMemory(Instruction inst, StorageKind storageKind)
         {
             return (inst.IsAtomic() && storageKind == StorageKind.GlobalMemory) ||