Swith orx-glslify to preprocessor usage

orx-glslify/src/test/resources/a-result.glsl

@@ -0,0 +1,27 @@
+#version 330
+
+float add(float a, float b) {
+    return a + b;
+}
+
+float multiply(float a, float b) {
+    return a * b;
+}
+
+
+float equation(float a, float b) {
+    return multiply(add(a, b), b);
+}
+
+float luminance(vec3 color) {
+    return dot(color, vec3(0.299, 0.587, 0.114));
+}
+
+float luminance(vec4 color) {
+    return dot(color.rgb, vec3(0.299, 0.587, 0.114));
+}
+
+
+void main() {
+
+}