added barriers, started working on libraries

funnyassets/shaders/flat.slang

@@ -0,0 +1,23 @@
+struct VS_INPUT
+{
+	float3 m_vPosition;
+}
+
+struct PS_INPUT 
+{
+	float4 m_vPosition;
+}
+
+[shader("vertex")]
+PS_INPUT vsMain( VS_INPUT i )
+{
+	PS_INPUT o;
+	o.m_vPosition = { i.m_vPosition, 1 };
+	return o;
+}
+
+[shader("pixel")]
+float4 psMain( PS_INPUT i )
+{
+	return float4(1);
+}