opengl-cts-4.6.4.1: OpenGL CTS 4.6.4.1

Fixes:
 * Use NEAREST filtering for integer formats in sparse access tests
 * add buffer read bit for buffer access
 * Implement support for the EGL_EXT_config_select_group extension
 * delete illegal dEQP-GL45-ES3 negative interpolation tests
 * delete illegal dEQP-GL45-ES3 unsized format tests
 * fix cube array extension check for dEQP-GL45-ES3
 * framebuffer SRGB checks in dEQP-GL45-ES3 tests
 * Fix memory leak in KHR-GL46.tessellation_shader.vertex.vertex_spacing
 * use MAP_READ_BIT when querying buffer contents
 * fix extension checks for dEQP-GL45-ES3 border clamp tests
 * Fix sparse_texture2 tests for GL_TEXTURE_2D_MULTISAMPLE_ARRAY
 * Correct EGL_EXT_config_select_group extension query
 * fix texture buffer extension check for dEQP-GL45-ES3
 * Fix pointer error from real bool type
 * Update KC CTS

Improvements:
 * don't write test results or conformance from cts-runner --summary
 * Fix compilation issues within PlatformMemoryLimits
 * Update KC CTS
 * Run clang-format + remove de* types