Add tool for visualizing crate hierarchy (#3315)

* Add tool for visualizing crate hierarchy

* Update crate structure

* Restructure crate viz and integrate crate into workspace

* Remove transitive dependency edges

* Move png / svg creation into the rust binary

node-graph/libraries/wgpu-executor/src/shader_runtime/mod.rs

@@ -0,0 +1,20 @@
+use crate::WgpuContext;
+use crate::shader_runtime::per_pixel_adjust_runtime::PerPixelAdjustShaderRuntime;
+
+pub mod per_pixel_adjust_runtime;
+
+pub const FULLSCREEN_VERTEX_SHADER_NAME: &str = "fullscreen_vertexfullscreen_vertex";
+
+pub struct ShaderRuntime {
+	context: WgpuContext,
+	per_pixel_adjust: PerPixelAdjustShaderRuntime,
+}
+
+impl ShaderRuntime {
+	pub fn new(context: &WgpuContext) -> Self {
+		Self {
+			context: context.clone(),
+			per_pixel_adjust: PerPixelAdjustShaderRuntime::new(),
+		}
+	}
+}