ash runner: remove multimodule, simplify pipeline creation

Author: Firestar99

Cargo.lock

@@ -22,6 +22,7 @@ clap = { version = "4", features = ["derive"] }
 cfg-if = "1.0.0"
 shared = { path = "../../shaders/shared" }
 spirv-builder = { workspace = true, default-features = false }
+anyhow = "1.0.98"
 
 [target.'cfg(target_os = "macos")'.dependencies]
 ash-molten = { version = "0.20", features = ["pre-built"] }