Add robust run-repo shortcuts with nested project support #105

Job	Run time
build (x86_64-apple-darwin, macos-latest)	2m 28s
build (aarch64-unknown-linux-gnu, ubuntu-latest)	4m 20s
build-linux-host-simd	9m 49s
build (x86_64-unknown-linux-gnu, ubuntu-latest)	2m 12s
build (aarch64-apple-darwin, macos-latest)	3m 3s
release	10s
	22m 2s

Provide feedback