[Backport from `polkadot-sdk`] Move chain definitions to separate folder (#2892)

* [Bridges] Move chain definitions to separate folder (#3822)

Related to
https://github.com/paritytech/parity-bridges-common/issues/2538

This PR doesn't contain any functional changes.

The PR moves specific bridged chain definitions from
`bridges/primitives` to `bridges/chains` folder in order to facilitate
the migration of the `parity-bridges-repo` into `polkadot-sdk` as
discussed in https://hackmd.io/LprWjZ0bQXKpFeveYHIRXw?view

Apart from this it also includes some cosmetic changes to some
`Cargo.toml` files as a result of running `diener workspacify`.

(cherry picked from commit 0711729d)

* diener workspacify

bridges/primitives/chain-asset-hub-rococo/Cargo.toml → bridges/chains/chain-asset-hub-rococo/Cargo.toml

@@ -17,7 +17,7 @@ scale-info = { version = "2.11.0", default-features = false, features = ["derive
 frame-support = { git = "https://github.com/paritytech/polkadot-sdk", branch = "master", default-features = false }
 
 # Bridge Dependencies
-bp-xcm-bridge-hub-router = { path = "../xcm-bridge-hub-router", default-features = false }
+bp-xcm-bridge-hub-router = { path = "../../primitives/xcm-bridge-hub-router", default-features = false }
 
 [features]
 default = ["std"]

bridges/primitives/chain-asset-hub-westend/Cargo.toml → bridges/chains/chain-asset-hub-westend/Cargo.toml

@@ -17,7 +17,7 @@ scale-info = { version = "2.11.0", default-features = false, features = ["derive
 frame-support = { git = "https://github.com/paritytech/polkadot-sdk", branch = "master", default-features = false }
 
 # Bridge Dependencies
-bp-xcm-bridge-hub-router = { path = "../xcm-bridge-hub-router", default-features = false }
+bp-xcm-bridge-hub-router = { path = "../../primitives/xcm-bridge-hub-router", default-features = false }
 
 [features]
 default = ["std"]

bridges/primitives/chain-kusama/Cargo.toml → bridges/chains/chain-kusama/Cargo.toml

@@ -13,9 +13,9 @@ workspace = true
 
 # Bridge Dependencies
 
-bp-header-chain = { path = "../header-chain", default-features = false }
-bp-polkadot-core = { path = "../polkadot-core", default-features = false }
-bp-runtime = { path = "../runtime", default-features = false }
+bp-header-chain = { path = "../../primitives/header-chain", default-features = false }
+bp-polkadot-core = { path = "../../primitives/polkadot-core", default-features = false }
+bp-runtime = { path = "../../primitives/runtime", default-features = false }
 
 # Substrate Based Dependencies
 

bridges/primitives/chain-polkadot-bulletin/Cargo.toml → bridges/chains/chain-polkadot-bulletin/Cargo.toml

@@ -15,10 +15,10 @@ scale-info = { version = "2.11.0", default-features = false, features = ["derive
 
 # Bridge Dependencies
 
-bp-header-chain = { path = "../header-chain", default-features = false }
-bp-messages = { path = "../messages", default-features = false }
-bp-polkadot-core = { path = "../polkadot-core", default-features = false }
-bp-runtime = { path = "../runtime", default-features = false }
+bp-header-chain = { path = "../../primitives/header-chain", default-features = false }
+bp-messages = { path = "../../primitives/messages", default-features = false }
+bp-polkadot-core = { path = "../../primitives/polkadot-core", default-features = false }
+bp-runtime = { path = "../../primitives/runtime", default-features = false }
 
 # Substrate Based Dependencies
 

bridges/primitives/chain-polkadot/Cargo.toml → bridges/chains/chain-polkadot/Cargo.toml

@@ -13,9 +13,9 @@ workspace = true
 
 # Bridge Dependencies
 
-bp-header-chain = { path = "../header-chain", default-features = false }
-bp-polkadot-core = { path = "../polkadot-core", default-features = false }
-bp-runtime = { path = "../runtime", default-features = false }
+bp-header-chain = { path = "../../primitives/header-chain", default-features = false }
+bp-polkadot-core = { path = "../../primitives/polkadot-core", default-features = false }
+bp-runtime = { path = "../../primitives/runtime", default-features = false }
 
 # Substrate Based Dependencies