Runtime Changes of RFC-1481 and DIP-7

Rationale

Smart contract upgrades have increased flexibility.
Minimize precompile works at the low-level.
The standard contract ABI and source code provide enhanced scalability for DApp developers.
Leverage existing governance components from the EVM ecosystem to improve integration, aligning with user familiarity.

[ ] Implement a pallet to record specific contract addresses authorized for system-level calls, also known as the whitelist.
[x] Create darwinia-deposit through smart contract implementation.
[x] Create darwinia-staking through smart contract implementation.
[ ] Establish governance components with a smart contract or utilize an existing framework.
[x] Implement a governance ticket to grant voting rights to tokens (RING/KTON) that are locked in external systems.