…yer, and it's not found, continue to load the application instead of erroring out.

Fix the validation layer discovered issues in shader object.  The render_pass gets created twice (once in the super class prepare and once after the child class recreates the frame buffer.  Destroying the first created renderpass will solve this.).  Also the heightmap_texture and terrain_array_texture both get their sampler's default created and then explicitly recreated.  So adding the destroy sampler just before recreation solves the second and third validation issue.

…it can be downloaded after the run and applied as a patch.

…_shader_object_optional_layer

# Conflicts:
#	framework/core/hpp_instance.h
#	framework/core/instance.h
#	framework/hpp_vulkan_sample.cpp
#	framework/hpp_vulkan_sample.h
#	framework/vulkan_sample.cpp
#	samples/extensions/shader_object/README.adoc
#	third_party/volk
#	third_party/vulkan

Related functions and variables have been updated to accommodate the change. This ensures consistency and optimizes the performance for layer searches and validations.