Import Polkadot and Cumulus runtimes

[ggwpez]

This merge request imports the runtime files from Polkadot and Cumulus.
The original setup imports (70598a19e5, 2c3cd0270). Then as a sync-up commit is applied to latest master (79b0d6e31a, 710fee562c3).

The reasoning for not directly deleting the copied files from Polkadot/Cumulus is to give the CI team some time ahead to set everything up. Once this happened we can make a clear cut and remove the code from the other repos and switch the dependencies over.

Status: Please review the following

• All commits from the Polkadot and Cumulus repo are present for all files. Note that the hashes will not match.
• Compiles successfully & tests work.
• Workspace dependencies are referenced via path, not git or crates.

You can check the commit history of a file with:

git log --no-merges -M --oneline --follow -- system-parachains/runtimes/asset-hubs/assets-hub-kusama/src/lib.rs

Folder structure:

.
├── relay
│   ├── common
│   │   ├── slot_range_helper
│   │   │   └── src
│   │   └── src
│   │       ├── crowdloan
│   │       └── slots
│   └── runtimes
│       ├── kusama
│       │   ├── constants
│       │   └── src
│       ├── metrics
│       │   └── src
│       ├── parachains
│       │   └── src
│       ├── polkadot
│       │   ├── constants
│       │   └── src
│       └── test-runtime
│           ├── constants
│           └── src
└── system-parachains
    ├── common
    │   ├── pallets
    │   │   └── collator-selection
    │   └── src
    ├── integration-tests
    │   ├── collectives
    │   │   ├── 0_xcm
    │   │   └── 1_alliance
    │   ├── statemine
    │   │   └── xcm
    │   └── statemint
    │       └── xcm
    └── runtimes
        ├── asset-hubs
        │   ├── assets-hub-kusama
        │   ├── assets-hub-polkadot
        │   └── common
        ├── bridge-hubs
        │   ├── bridge-hub-kusama
        │   └── bridge-hub-polkadot
        └── collectives
            └── collectives-polkadot

TODOS:

• Review Cargo.toml
  • License
  • Authors
  • Version