Support for constructor-related functionality in Soroban SDK. #4196

Job	Run time
check-git-rev-deps	12s
build-fuzz	3m 28s
cargo-deny (advisories)	47s
build-and-test (msrv, ubuntu-latest, x86_64-unknown-linux-gnu)	8m 14s
docs	5m 7s
cargo-deny (bans licenses sources)	52s
build-and-test (msrv, ubuntu-latest, aarch64-unknown-linux-gnu, true)	4m 45s
fmt	16s
build-and-test (msrv, windows-latest, x86_64-pc-windows-msvc)	16m 9s
build-and-test (latest, ubuntu-latest, x86_64-unknown-linux-gnu)	6m 50s
publish-dry-run	0s
build-and-test (latest, ubuntu-latest, aarch64-unknown-linux-gnu, true)	4m 26s
readme	3m 28s
semver-checks	3m 0s
build-and-test (latest, windows-latest, x86_64-pc-windows-msvc)	11m 41s
complete	1s
	1h 9m 16s

Provide feedback