Added minimal headless compute example

data/shaders/computeheadless/headless.comp

@@ -0,0 +1,33 @@
+#version 450
+
+layout(binding = 0) buffer Pos {
+   uint values[ ];
+};
+
+layout (local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
+
+// todo: pass via specialization constant
+#define BUFFER_ELEMENTS 32
+
+uint fibonacci(uint n) {
+	if(n <= 1){
+		return n;
+	}
+	uint curr = 1;
+	uint prev = 1;
+	for(uint i = 2; i < n; ++i) {
+		uint temp = curr;
+		curr += prev;
+		prev = temp;
+	}
+	return curr;
+}
+
+void main() 
+{
+	uint index = gl_GlobalInvocationID.x;
+	if (index >= BUFFER_ELEMENTS) 
+		return;	
+	values[index] = fibonacci(values[index]);
+}
+