dir restructure to support more CGP (#1266)

* rerame res to chain-specs

* split polkadot-parachains dir

* rename dir parachains-common to common

Co-authored-by: joe petrowski <25483142+joepetrowski@users.noreply.github.com>
Co-authored-by: Wilfried Kopp <wilfried@parity.io>
Co-authored-by: Chevdor <chevdor@users.noreply.github.com>

cumulus/parachains/runtimes/assets/westmint/src/weights/mod.rs

@@ -0,0 +1,20 @@
+pub mod block_weights;
+pub mod cumulus_pallet_xcmp_queue;
+pub mod extrinsic_weights;
+pub mod frame_system;
+pub mod pallet_assets;
+pub mod pallet_balances;
+pub mod pallet_collator_selection;
+pub mod pallet_multisig;
+pub mod pallet_proxy;
+pub mod pallet_session;
+pub mod pallet_timestamp;
+pub mod pallet_uniques;
+pub mod pallet_utility;
+pub mod paritydb_weights;
+pub mod rocksdb_weights;
+
+pub use block_weights::constants::BlockExecutionWeight;
+pub use extrinsic_weights::constants::ExtrinsicBaseWeight;
+pub use paritydb_weights::constants::ParityDbWeight;
+pub use rocksdb_weights::constants::RocksDbWeight;