examples: add render-pass-ext exmaple

examples/render-pass-ext/vulkan/shaders/meson.build

@@ -0,0 +1,24 @@
+vulkan_custom_shaders_src = [
+	'triangle.vert',
+	'triangle.frag',
+]
+
+vulkan_shader_sources = []
+foreach shader : vulkan_custom_shaders_src
+	if shader == 'triangle.vert'
+		name = 'custom_triangle_vert_data'
+	else
+		name = 'custom_triangle_frag_data'
+	endif
+	args = [glslang, '-V', '@INPUT@', '-o', '@OUTPUT@', '--vn', name]
+	if glslang_version.version_compare('>=11.0.0')
+		args += '--quiet'
+	endif
+	header = custom_target(
+		'custom-render-pass-vulkan-' + shader + '_spv',
+		output: shader + '.h',
+		input: shader,
+		command: args,
+	)
+	vulkan_shader_sources += [header]
+endforeach