combine end and nether shaders into one group of programs. for my own ease of use.

shaders/dimensions/composite3.vsh

@@ -0,0 +1,17 @@
+#include "/lib/util.glsl"
+
+varying vec2 texcoord;
+flat varying float exposureA;
+flat varying float tempOffsets;
+uniform sampler2D colortex4;
+uniform int frameCounter;
+
+
+
+void main() {
+
+	tempOffsets = HaltonSeq2(frameCounter%10000);
+	gl_Position = ftransform();
+	texcoord = gl_MultiTexCoord0.xy;
+	exposureA = texelFetch2D(colortex4,ivec2(10,37),0).r;
+}