Add tests for EGL_GL_COLORSPACE_DISPLAY_P3_PASSTHROUGH_EXT.
Components: EGL
VK-GL-CTS Issue: 1534
New tests:
dEQP-EGL.functional.wide_color.window_fp16_colorspace_p3_passthrough,
dEQP-EGL.functional.wide_color.pbuffer_fp16_colorspace_p3_passthrough,
dEQP-EGL.functional.wide_color.window_1010102_colorspace_p3_passthrough,
dEQP-EGL.functional.wide_color.pbuffer_1010102_colorspace_p3_passthrough,
dEQP-EGL.functional.wide_color.window_8888_colorspace_p3_passthrough,
dEQP-EGL.functional.wide_color.pbuffer_8888_colorspace_p3_passthrough,
dEQP-EGL.functional.wide_color.window_888_colorspace_p3_passthrough,
dEQP-EGL.functional.wide_color.pbuffer_888_colorspace_p3_passthrough
Change-Id: I58a9a6a676d8e438c3c2494679105d65e71852b5