Tests mixing UB/SSB with and without instance names

Tests mixing UB/SSB with and without instance names

Matched uniform or shader storage block names (but not input or
output block names) must also either all be lacking an instance
name or all having an instance name.

Components: OpenGL

VK-GL-CTS issue: 3

Affects:
KHR-GL43.shader_storage_buffer_object.basic-name-match
KHR-GLES31.core.shader_storage_buffer_object.basic-name-match
KHR-GL33.shaders.uniform_block.common.name_matching
KHR-GLES3.shaders.uniform_block.common.name_matching

Change-Id: I7dc3476272d6f3fca3faa7e6bc57a008bce0e17f