Move cargo shell completions to Rust

Project Description: The existing completion functionality for cargo commands is achieved through the maintenance of a completion script. This script is difficult to maintain and cannot be easily ported across different shells, with each shell requiring its own specific completion script. How to solve: This project aims for the completion script to call an external completion program, thereby realizing the implementation of the completion functionality in Rust language, instead of shell completion scripts. Rust will bring various advantages such as safety, testability, portability, and ease of extension. Deliverables: 1. Implement a stable and easy-to-use dynamic auto-completion script generation module for the clap project. 2. Implementation of cargo dynamic completion feature. 3. Testing the cargo dynamic completion feature