Update Snowbridge versions and prep for publishing (#2894)

- updates snowbridge crates to `0.9.0`
- updates Cargo.toml files in preparation for publishing to crates.io
- adds Kusama and Polkadot Snowbridge runtime config crates
- moves runtime tests from the Snowbridge subtree into the bridge hub
tests dir

---------

Co-authored-by: claravanstaden <Cats 4 life!>
Co-authored-by: Ron <yrong1997@gmail.com>

cumulus/parachains/runtimes/assets/asset-hub-rococo/Cargo.toml

@@ -91,7 +91,6 @@ bp-asset-hub-westend = { path = "../../../../../bridges/primitives/chain-asset-h
 bp-bridge-hub-rococo = { path = "../../../../../bridges/primitives/chain-bridge-hub-rococo", default-features = false }
 bp-bridge-hub-westend = { path = "../../../../../bridges/primitives/chain-bridge-hub-westend", default-features = false }
 snowbridge-router-primitives = { path = "../../../../../bridges/snowbridge/parachain/primitives/router", default-features = false }
-snowbridge-rococo-common = { path = "../../../../../bridges/snowbridge/parachain/runtime/rococo-common", default-features = false }
 
 [dev-dependencies]
 asset-test-utils = { path = "../test-utils" }
@@ -139,7 +138,6 @@ runtime-benchmarks = [
 	"parachains-common/runtime-benchmarks",
 	"polkadot-parachain-primitives/runtime-benchmarks",
 	"polkadot-runtime-common/runtime-benchmarks",
-	"snowbridge-rococo-common/runtime-benchmarks",
 	"snowbridge-router-primitives/runtime-benchmarks",
 	"sp-runtime/runtime-benchmarks",
 	"xcm-builder/runtime-benchmarks",
@@ -231,7 +229,6 @@ std = [
 	"primitive-types/std",
 	"rococo-runtime-constants/std",
 	"scale-info/std",
-	"snowbridge-rococo-common/std",
 	"snowbridge-router-primitives/std",
 	"sp-api/std",
 	"sp-block-builder/std",