Add proxy support (#272) #986

Job	Run time
Format	17s
Build WASM (stable, -p cdk)	2m 17s
Build (stable, -p cdk)	1m 58s
Build WASM (stable, -p cdk --no-default-features)	1m 31s
Build (stable, -p cdk --no-default-features)	1m 49s
Build WASM (stable, -p cdk --no-default-features --features wallet)	3m 48s
Build (stable, -p cdk --no-default-features --features wallet)	2m 3s
Build WASM (stable, -p cdk-js)	1m 22s
Build (stable, -p cdk --no-default-features --features mint)	1m 34s
Build (stable, -p cdk-redb)	2m 12s
Build (stable, -p cdk-sqlite)	2m 31s
Build (stable, -p cdk-axum)	3m 3s
Build (stable, -p cdk-cln)	2m 29s
Build (stable, -p cdk-fake-wallet)	2m 46s
Build (stable, -p cdk-strike)	1m 56s
Build (stable, --bin cdk-cli)	3m 2s
Build (stable, --bin cdk-mintd)	3m 19s
Build (stable, --examples)	2m 38s
	40m 35s

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