Major reorganization and feature extension

[starkillerOG]

• Reorganize library by splitting up the files.
• Implement new features.
• Catch 404 missing methods.
• Add 3 second sleep for 503 errors

[starkillerOG]

@MatMaul This PR is a very big one. I did test it all.

Are you alright if I merge this, or do you first want to have a look?