adding pipeline unit tests

Tests/Vulkan/Shaders/ReadWriteBindings.nzsl

@@ -0,0 +1,27 @@
+[nzsl_version("1.0")]
+module;
+
+struct Input
+{
+    [builtin(global_invocation_indices)] indices: vec3[u32]
+}
+
+[layout(std430)]
+struct SSBO
+{
+    data: dyn_array[u32]
+}
+
+external
+{
+    [set(0), binding(0)] read_ssbo: storage[SSBO, readonly],
+    [set(0), binding(1)] read_texture: texture2D[f32, readonly, rgba8],
+    [set(1), binding(0)] write_ssbo: storage[SSBO, writeonly],
+    [set(1), binding(1)] write_texture: texture2D[f32, readonly, rgba8],
+}
+
+[entry(compute)]
+[workgroup(32, 32, 1)]
+fn main(input: Input)
+{
+}