basic rendering for both opengl and vulkan

assets/shaders/quad.frag

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+#version 450
+
+layout(location = 0) in vec3 frag_color;
+
+layout(location = 0) out vec4 out_color;
+
+void main()
+{
+	out_color = vec4(frag_color, 1.0);
+}

assets/shaders/quad.vert

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+#version 450
+
+layout(location = 0) in vec2 in_position;
+layout(location = 1) in vec3 in_color;
+
+layout(location = 0) out vec3 frag_color;
+
+void main()
+{
+	gl_Position = vec4(in_position, 0.0, 1.0);
+	frag_color = in_color;
+}