printf: Don't do work when there is no printf instruction

[spencer-lunarg]

Found using VK_LAYER_PRINTF_ONLY_PRESET slows down things way too much by default. With this change, find that when an app uses no printf in their shader (because assuming only 1 of there many pipelines will even have it) you regain near "normal" FPS again

note - VK_LAYER_PRINTF_ONLY_PRESET turns off everything but DebugPrintf just like vkconfig does

[ci-tester-lunarg]

CI Vulkan-ValidationLayers build queued with queue ID 349236.

[ci-tester-lunarg]

CI Vulkan-ValidationLayers build # 18755 running.

[ci-tester-lunarg]

CI Vulkan-ValidationLayers build # 18755 failed.

[ci-tester-lunarg]

CI Vulkan-ValidationLayers build queued with queue ID 349488.

[ci-tester-lunarg]

CI Vulkan-ValidationLayers build queued with queue ID 349517.

[ci-tester-lunarg]

CI Vulkan-ValidationLayers build # 18761 running.

[ci-tester-lunarg]

CI Vulkan-ValidationLayers build # 18761 passed.

[arno-lunarg]

PR is convoluted, a lot changes in different spots to simply express "don't try to setup instrumentation validation resources when bound pipeline has not been instrumented".
It shows that we still have problems with the architecture : /

[arno-lunarg]

Why not just go if (!last_bound.pipeline_state.instrumentation_data.was_instrumented) return; in <Pre, Post>CallSetupShaderInstrumentationResources?

[spencer-lunarg]

It shows that we still have problems with the architecture : /

Honestly I don't know what to change?

1. We need to instrument at PreCallRecordPipeline
2. We need to save the state at PostCallRecordPipeline
3. We need to refer to the data at Draw time to know if it is to skip or not

So we have 2 spots (between 1-and-2 and 2-and-3) to hold this state, not sure how else to get around it