Dodanie endpointów/serwisów/repozytoriów

[Kamczii]

• - Users

1. /all - only admins
2. /{id} - only user with this id

• - Products

1. /all - only admins
2. /published - for all, return all published products
   • - published/{id} - for all, return product with id
3. /unpublished - only admins
   • - /unpublished/{id} only admin, return product with

• - Authorization
  /register?username=login&password=pass&email
  /login?username=login&password=pass
• - Contact
  / for all

[PR0TEX]

Checkpoints added