router: add layout and other file supports to parallel routes (#51413) #311

Job	Run time
build	2m 12s
build-wasm (web)	55s
build-wasm (nodejs)	1m 27s
Deploy examples	33s
stable - x86_64-apple-darwin - node@16	59s
stable - x86_64-pc-windows-msvc - node@16	2m 43s
stable - i686-pc-windows-msvc - node@16	7m 19s
stable - x86_64-unknown-linux-gnu - node@16	2m 5s
stable - x86_64-unknown-linux-musl - node@16	1m 38s
stable - aarch64-apple-darwin - node@16	2m 10s
stable - aarch64-unknown-linux-gnu - node@16	2m 16s
stable - aarch64-unknown-linux-musl - node@16	1m 33s
stable - aarch64-pc-windows-msvc - node@16	4m 2s
Upload Turbopack Bytesize trace to Datadog	31s
Potentially publish release	0s
Release Stats	0s
E2E (deploy)	0s
	30m 23s

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