Add support for creating Vulkan window surfaces.

examples/vulkan/resources/shader.vert

@@ -0,0 +1,25 @@
+#version 450
+#extension GL_ARB_separate_shader_objects : enable
+
+layout(binding = 0) uniform UniformBufferObject {
+    mat4 model;
+    mat4 view;
+    mat4 proj;
+} ubo;
+
+layout(location = 0) in vec3 inPosition;
+layout(location = 1) in vec4 inColor;
+layout(location = 2) in vec2 inTexCoord;
+
+layout(location = 0) out vec4 fragColor;
+layout(location = 1) out vec2 fragTexCoord;
+
+out gl_PerVertex {
+    vec4 gl_Position;
+};
+
+void main() {
+    gl_Position = ubo.proj * ubo.view * ubo.model * vec4(inPosition, 1.0);
+    fragColor = inColor;
+    fragTexCoord = inTexCoord;
+}