Simplesockets

- ``autorecv()`` now can toggle the autorecv thread
- ``Server.killed()`` is now a property
- added a disconnect function to the Client
- added Address property to the Client
- added own exceptions
- fixed own encryption
- small changes

- made all threads daemon
- made `users_key` public, added `connected_users` property
- bugfixes
- small changes
- removed the ``exit()`` functions
- added documentation to the code

- added `__str__()` and `__repr__()`
- added own RSA and Vigeneré for semi secure encryption without dependencies.
- added new Client and Server class with own RSA encryption and Vigeneré.
- ``on_receive`` on the Server takes now 3 arguments: client_socket, address, recved
- added ``decrypt_data()`` function to the Secure Servers

- fixed imports
- added more typehints

- added `on_connect`, `on_disconnect` and `on_receive` functions
- changes to the `exit()` function
- bugfixes
- added hash functions in the cipher module
- securesockets is now a package containing `S_Client` and `S_Server`
- new event variable containing events and exceptions
- added ipv6 versions to S_Client and S_Server (untested).

- created ipv6 versions