message: Fix issues identified by synchronisation layer
diff: @@ -282,8 +282,10 @@ void main()
  pushMarker(cmd, "Primary: Dispatches");
  vkh::cmdPipelineBarrier(
  - cmd, {}, {vkh::BufferMemoryBarrier(VK_ACCESS_TRANSFER_WRITE_BIT,
  - VK_ACCESS_INDIRECT_COMMAND_READ_BIT, ssbo.buffer)});
  + cmd, {},
  + {vkh::BufferMemoryBarrier(
  + VK_ACCESS_TRANSFER_WRITE_BIT,
  + VK_ACCESS_INDIRECT_COMMAND_READ_BIT | VK_ACCESS_SHADER_WRITE_BIT, ssbo.buffer)});
  vkCmdBindPipeline(cmd, VK_PIPELINE_BIND_POINT_COMPUTE, comppipe);
  vkh::cmdBindDescriptorSets(cmd, VK_PIPELINE_BIND_POINT_COMPUTE, complayout, 0, {descset}, {});
  @@ -301,8 +303,10 @@ void main()
  vkCmdDispatch(cmd, 1, 1, 1);
  vkh::cmdPipelineBarrier(
  - cmd, {}, {vkh::BufferMemoryBarrier(VK_ACCESS_TRANSFER_WRITE_BIT,
  - VK_ACCESS_INDIRECT_COMMAND_READ_BIT, ssbo.buffer)});
  + cmd, {},
  + {vkh::BufferMemoryBarrier(
  + VK_ACCESS_SHADER_WRITE_BIT,
  + VK_ACCESS_INDIRECT_COMMAND_READ_BIT | VK_ACCESS_SHADER_WRITE_BIT, ssbo.buffer)});
  mode = 2;
  vkCmdPushConstants(cmd, complayout, VK_SHADER_STAGE_COMPUTE_BIT, 0, 4, &mode);
  @@ -478,7 +482,7 @@ void main()
  vkCmdDispatch(cmd, 1, 1, 1);
  vkh::cmdPipelineBarrier(
  - cmd, {}, {vkh::BufferMemoryBarrier(VK_ACCESS_TRANSFER_WRITE_BIT,
  + cmd, {}, {vkh::BufferMemoryBarrier(VK_ACCESS_SHADER_WRITE_BIT,
  VK_ACCESS_INDIRECT_COMMAND_READ_BIT, ssbo.buffer)});
  mode = 2;
  