Add the shaders

tools/pdsg/shaders/shader.vert

@@ -0,0 +1,20 @@
+#version 460
+  
+layout(location = 0) in vec2 pos;
+layout(location = 1) in vec2 uv;
+layout(location = 2) in vec4 color;
+
+layout(location = 0) out vec2 oUV;
+layout(location = 1) out vec4 oColor;
+
+// Probably forgot about this matrix and
+// searched hours for why the rendering isn't working :/
+layout(set = 0, binding = 0) uniform UBO {
+  mat4 projection;
+} ubo;
+
+void main() {
+    gl_Position = ubo.projection*vec4(pos, 0.0, 1.0);
+    oUV = uv;
+    oColor = color;
+}