Rename fadeCircle shaders to lightmapCircle

shader/lightmapCircle.vert

@@ -0,0 +1,15 @@
+#version 430 core
+layout (location = 0) in vec4 position;
+out vec2 vParams;
+
+uniform vec2 winSize;
+uniform float zoom;
+uniform vec2 translation;
+uniform float rotation;
+uniform mat4 worldMat;
+
+void main()
+{
+  gl_Position = vec4(position.xy,0,1);
+  vParams = position.zw;
+}