feat: Implement own IntEnum & StrEnum

[Damego]

About

There are cases when unknown enum value brokes whole bot.

For example:

Websocket have raised an exception, closing.
Traceback (most recent call last):
  File "D:\python_gh\discord_bots\ipy_bot\venv\Lib\site-packages\interactions\client\bot.py", line 479, in _login
    await self._websocket.run()
  File "D:\python_gh\discord_bots\ipy_bot\venv\Lib\site-packages\interactions\api\gateway\client.py", line 304, in run
    await self._handle_stream(msg)
  File "D:\python_gh\discord_bots\ipy_bot\venv\Lib\site-packages\interactions\api\gateway\client.py", line 356, in _handle_stream
    self._dispatch_event(event, data)
  File "D:\python_gh\discord_bots\ipy_bot\venv\Lib\site-packages\interactions\api\gateway\client.py", line 374, in _dispatch_event
    self._dispatch_discord_event(event, data)
  File "D:\python_gh\discord_bots\ipy_bot\venv\Lib\site-packages\interactions\api\gateway\client.py", line 493, in _dispatch_discord_event
    obj = model(**data)
          ^^^^^^^^^^^^^
  File "D:\python_gh\discord_bots\ipy_bot\venv\Lib\site-packages\interactions\utils\attrs_utils.py", line 144, in __init__
    super().__init__(**kwargs)
  File "D:\python_gh\discord_bots\ipy_bot\venv\Lib\site-packages\interactions\utils\attrs_utils.py", line 80, in __init__
    self.__attrs_init__(**passed_kwargs)  # type: ignore
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<attrs generated init interactions.api.models.message.Message>", line 21, in __attrs_init__
    self.type = __attr_converter_type(type)
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\python_gh\discord_bots\ipy_bot\venv\Lib\site-packages\attr\converters.py", line 39, in optional_converter
    return converter(val)
           ^^^^^^^^^^^^^^
  File "D:\python_gh\discord_bots\ipy_bot\venv\Lib\site-packages\interactions\utils\attrs_utils.py", line 205, in inner_convert_object
    return value if isinstance(value, type_) else type_(value)
                                                  ^^^^^^^^^^^^
  File "C:\Users\User\AppData\Local\Programs\Python\Python311\Lib\enum.py", line 695, in __call__
    return cls.__new__(cls, value)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\User\AppData\Local\Programs\Python\Python311\Lib\enum.py", line 1111, in __new__
    raise ve_exc
ValueError: 0 is not a valid MessageType

Process finished with exit code 0

This pr fixes this error by implementing own enum for int and str types and adding _missing_ method for catching unknown values.

Code:

@client.event
async def on_message_create(message: interactions.Message):
    print(message.type, type(message.type))

Result:

MessageType.UNKNOWN: 0 <enum 'MessageType'>

Checklist

• The pre-commit code linter has been run over all edited files to ensure the code is linted.
• I've ensured the change(s) work on 3.8.6 and higher.

I've made this pull request: (check all that apply)

• For the documentation
• To add a new feature
• As a general enhancement
• As a refactor of the library/the library's code
• To fix an existing bug
• To resolve #ISSUENUMBER

This is:

• A breaking change