Implement IMUL, PCNT and CONT shader instructions, fix FFMA32I and HFMA32I (#2972)

* Implement IMUL shader instruction

* Implement PCNT/CONT instruction and fix FFMA32I

* Add HFMA232I to the table

* Shader cache version bump

* No Rc on Ffma32i

Ryujinx.Graphics.Gpu/Shader/ShaderCache.cs

@@ -40,7 +40,7 @@ namespace Ryujinx.Graphics.Gpu.Shader
         /// <summary>
         /// Version of the codegen (to be changed when codegen or guest format change).
         /// </summary>
-        private const ulong ShaderCodeGenVersion = 2764;
+        private const ulong ShaderCodeGenVersion = 2972;
 
         // Progress reporting helpers
         private volatile int _shaderCount;