layers: Add DrawState check to verify that Pipeline layout from vkCmdBindDescriptorSets() matches layout from PSO at Draw time.

Also fix a bug where PSO status flags were not getting set into Cmd Buffer.
diff --git a/layers/draw_state.h b/layers/draw_state.h
index 40f7f9d..9c64778 100644
--- a/layers/draw_state.h
+++ b/layers/draw_state.h
@@ -54,6 +54,7 @@
     DRAWSTATE_COLOR_BLEND_NOT_BOUND,            // Draw submitted with no color blend state object bound when color write enabled
     DRAWSTATE_DEPTH_STENCIL_NOT_BOUND,          // Draw submitted with no depth-stencil state object bound when depth write enabled
     DRAWSTATE_INDEX_BUFFER_NOT_BOUND,           // Draw submitted with no depth-stencil state object bound when depth write enabled
+    DRAWSTATE_PIPELINE_LAYOUT_MISMATCH,         // Draw submitted PSO Pipeline layout that doesn't match layout from BindDescriptorSets
     DRAWSTATE_INVALID_EXTENSION,
 } DRAW_STATE_ERROR;
 
@@ -252,6 +253,7 @@
     uint32_t                     lastVtxBinding;
     DYNAMIC_STATE_NODE*          lastBoundDynamicState[VK_NUM_STATE_BIND_POINT];
     VkDescriptorSet              lastBoundDescriptorSet;
+    VkPipelineLayout             lastBoundPipelineLayout;
     VkRenderPass                 activeRenderPass;
     VkFramebuffer                framebuffer;
     vector<VkDescriptorSet>      boundDescriptorSets;