package rename + storage backend abstraction

src/main/resources/assets/zenith/shaders/lod/gl46/quads.frag

@@ -0,0 +1,8 @@
+#version 460 core
+layout(location = 0) in flat vec4 colour;
+layout(location = 0) out vec4 outColour;
+void main() {
+    //TODO: randomly discard the fragment with respect to the alpha value
+
+    outColour = colour;
+}