34 bot new slash command debug

[lukaqueres]

About

First commands added, will mark a huge step in bot's 2.0 development process. Hopefully everytching will grow even larger ( except bugs ), and everyone will live happily ever after.

Special thanks to everyone for contributing, mental or code support provided for only sensitive part of this workflow.

For more curious users I suggest to read whole issue thread, wchich may give some point of work, errors encountered, etc.

And for everyone, there is round-up of more notable changes available below. Happy reading!

Changes overview

• Added PIBot class as a class to inherit attributes ( along with everything else ) from discord.client, and add some of custom class functions as well as attributes.
• prefix function was renamed to __get_prefix and was made private inside of PIBot class.
• Created PIEmbed class as an inherit from discord.Embed class. It handles embeds creation, and fields input. It holds some default values for less defining in every embed creation. It has specially designed functions for automatic value ( field content ) split in case of too long. Requires some more work in limits errors.
• Changed activities fetch during startup, theoritically it still works, and should allow multiple same activities lists.
• Added ping app_command command ( slash ). On invoke responds with message and client latency. Most likely will be edited and moved somewhere else later.
• Changed cogs loading precedure to allow async loading.
• Added error.py cog as a bot error handler. It was meant to be added in other issue, but was required beacuse of error not showing exceptions output.
• Roles managed by bots ( bot's unique roles ) are no longer listed in most roles list used here.
• Add role related events ( add, remove, edit ) with database roles update on all.
• Command setup refresh was added as an app_command. It updates roles if not accurate. In case of no record of guild, creates one.
• Fixed database.update function not working properly.
• Tried to do something in packets.utilities but it is not worth mentioning about it.

I obviously would love to hear some feedback about it! ( @kocielnik, I don't have to mention that you are especially invited )

[lukaqueres]

Fixed code causing automatic merge error.

[lukaqueres]

Special thanks for @kocielnik for his time and effort that he had to put to dig through this mess!

As there is no more feedback ( I can only guess that this code is so nice that no one can add anything ), I think that this branch could be as well merged to main.

Thank you all again!