Build

add optional metadata manifest path #275

Job	Run time
check-wasm	6m 53s
clippy-guests	3m 14s
check-fmt	39s
clippy-root	4m 43s
generate-guest-matrix	8s
test	5m 58s
build-guest (swap-info)	2m 47s
build-guest (sum-balance)	2m 56s
build-guest (total-supply)	2m 56s
build-guest (sum-balance-percent)	2m 53s
collect-guests	0s
	33m 7s

Provide feedback