feat: add shader pipeline and chunk GLSL shaders

Assets/shaders/chunk.frag

@@ -0,0 +1,13 @@
+#version 330 core
+in vec2 vUv;
+in float vShade;
+
+out vec4 FragColor;
+
+uniform sampler2D atlas;
+
+void main()
+{
+    vec4 texel = texture(atlas, vUv);
+    FragColor = vec4(texel.rgb * vShade, 1.0);
+}