Refactoring interfaces

[omar-abdelgawad]

📢 Describe your changes

• 📌 changes Summary
  • Changed entire structure of the package. Now we have a root img2img package.
  • Removed all redundant py.typed files.
  • updated readme,workflows,toml, setup.cfg and more.
  • Factored all of cfg, cli and dataset code into single global pacakges.
• ⚠️ Breaking changes
  • Package layout is entirely changed. All imports were adjusted. No extra functionality though.
• 🐞 Bug Fixes:
  • None

🧪 How to test this Pull Request

1. the github workflow should be enough as it suggests that the package was built correctly.

🗒️ Notes for future improvements

Further changes in this branch will include having the following packages under root:

• engine
• models (unit, tunit, pix2pix, etc)
• nn (convblock, resblock, etc)
• utils

✅Checklist before requesting a review

• I have performed a self-review of my code
• If it is a core feature, I have added thorough tests.