[Feature Request]: Simplify plugin and package creation

### Preflight Checklist

- [x] I have read the [Contributing Guidelines](https://github.com/EnAccess/micropowermanager/blob/main/CONTRIBUTING.md) for this project, if it exists.
- [x] I agree to follow the [Code of Conduct](https://github.com/EnAccess/micropowermanager/blob/main/CODE_OF_CONDUCT.md) that this project adheres to.
- [x] I have searched the [issue tracker](https://github.com/EnAccess/micropowermanager/issues) for a feature request that matches the one I want to file, without success.

### Problem Description

Currently, the initial package creation is tedious and confusing for new users.

Few pain points

- The package generation is based on an outdated starter, which we don't have control over https://github.com/inensus/Package-Development-Starter-Pack
- After initial command, developers have to manually copy files around, which is error prone
- The involved shell script does not work on Windows machines (if called natively, not inside Docker)
- Confusions are around migration vs stub migration files

### Proposed Solution

- Decomission the dependency on an external Github repo, and manage the template inside MPM repository
- Convert the Shell script to a full PHP native artisan command

### Alternatives Considered

N/A

### Additional Information

_No response_