Start filtering settings dependent on MSAA

Mostly disable stuff, except forward only

ScriptableRenderPipeline/HDRenderPipeline/HDRP/RenderPipeline/FrameSettings.cs

             aggregate.enableTransparentObjects = srcFrameSettings.enableTransparentObjects;
 
             aggregate.enableMSAA = srcFrameSettings.enableMSAA && renderPipelineSettings.supportMSAA;
+            if (aggregate.enableMSAA)
+            {
+                // Initially, MSAA will only support forward
+                aggregate.enableForwardRenderingOnly = true;
+
+                // Assuming MSAA is being used, TAA, and therefore, motion vectors are not needed
+                aggregate.enableMotionVectors = false;
+
+                // The work will be implemented piecemeal to support all passes
+                aggregate.enableDBuffer = false; // no decals
+                aggregate.enableDistortion = false; // no gaussian final color
+                aggregate.enablePostprocess = false; 
+                aggregate.enableRoughRefraction = false; // no gaussian pre-refraction
+                aggregate.enableSSAO = false;
+                aggregate.enableSSR = false;
+                aggregate.enableSubsurfaceScattering = false;
+                aggregate.enableTransparentObjects = false; // trying to skip the depth pyramid
+
+                // I also want to disable the deferred directional shadow to start
+            }
 
             aggregate.enableShadowMask = srcFrameSettings.enableShadowMask && renderPipelineSettings.supportShadowMask;